Merge tag 'ASB-2024-12-05_4.19-stable' of https://android.googlesource.com/kernel/common into android13-4.19-kona

https://source.android.com/docs/security/bulletin/2024-12-01

* tag 'ASB-2024-12-05_4.19-stable' of https://android.googlesource.com/kernel/common: (401 commits)
  Linux 4.19.324
  9p: fix slab cache name creation for real
  net: usb: qmi_wwan: add Fibocom FG132 0x0112 composition
  fs: Fix uninitialized value issue in from_kuid and from_kgid
  powerpc/powernv: Free name on error in opal_event_init()
  sound: Make CONFIG_SND depend on INDIRECT_IOMEM instead of UML
  bpf: use kvzmalloc to allocate BPF verifier environment
  HID: multitouch: Add quirk for HONOR MagicBook Art 14 touchpad
  9p: Avoid creating multiple slab caches with the same name
  ALSA: usb-audio: Add endianness annotations
  vsock/virtio: Initialization of the dangling pointer occurring in vsk->trans
  hv_sock: Initializing vsk->trans to NULL to prevent a dangling pointer
  ALSA: usb-audio: Add quirks for Dell WD19 dock
  ALSA: usb-audio: Support jack detection on Dell dock
  ALSA: usb-audio: Add custom mixer status quirks for RME CC devices
  ALSA: pcm: Return 0 when size < start_threshold in capture
  ocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove()
  irqchip/gic-v3: Force propagation of the active state with a read-back
  USB: serial: option: add Quectel RG650V
  USB: serial: option: add Fibocom FG132 0x0112 composition
  ...

 Conflicts:
	drivers/usb/dwc3/core.c
	drivers/usb/dwc3/core.h
	net/qrtr/qrtr.c

Change-Id: I328847813eb875d25c4aa35dcc7ba58ad09b53ae

.gitignore

@@ -114,7 +114,6 @@ GTAGS
 # id-utils files
 ID
 
-*.orig
 *~
 \#*#
 

Documentation/IPMI.txt

@@ -518,7 +518,7 @@ at module load time (for a module) with::
 	[dbg_probe=1]
 
 The addresses are normal I2C addresses.  The adapter is the string
-name of the adapter, as shown in /sys/class/i2c-adapter/i2c-<n>/name.
+name of the adapter, as shown in /sys/bus/i2c/devices/i2c-<n>/name.
 It is *NOT* i2c-<n> itself.  Also, the comparison is done ignoring
 spaces, so if the name is "This is an I2C chip" you can say
 adapter_name=ThisisanI2cchip.  This is because it's hard to pass in

Documentation/arm64/silicon-errata.txt

@@ -66,6 +66,7 @@ stable kernels.
 | ARM            | Cortex-A78      | #3324344        | ARM64_ERRATUM_3194386       |
 | ARM            | Cortex-A78C     | #3324346,3324347| ARM64_ERRATUM_3194386       |
 | ARM            | Cortex-A710     | #3324338        | ARM64_ERRATUM_3194386       |
+| ARM            | Cortex-A715     | #3456084        | ARM64_ERRATUM_3194386       |
 | ARM            | Cortex-A720     | #3456091        | ARM64_ERRATUM_3194386       |
 | ARM            | Cortex-A725     | #3456106        | ARM64_ERRATUM_3194386       |
 | ARM            | Cortex-X1       | #3324344        | ARM64_ERRATUM_3194386       |
@@ -78,6 +79,7 @@ stable kernels.
 | ARM            | Neoverse-N1     | #1542419        | ARM64_ERRATUM_1542419       |
 | ARM            | Neoverse-N1     | #3324349        | ARM64_ERRATUM_3194386       |
 | ARM            | Neoverse-N2     | #3324339        | ARM64_ERRATUM_3194386       |
+| ARM            | Neoverse-N3     | #3456111        | ARM64_ERRATUM_3194386       |
 | ARM            | Neoverse-V1     | #3324341        | ARM64_ERRATUM_3194386       |
 | ARM            | Neoverse-V2     | #3324336        | ARM64_ERRATUM_3194386       |
 | ARM            | Neoverse-V3     | #3312417        | ARM64_ERRATUM_3194386       |

Documentation/driver-model/devres.txt

@@ -235,6 +235,7 @@ certainly invest a bit more effort into libata core layer).
 
 CLOCK
   devm_clk_get()
+  devm_clk_get_optional()
   devm_clk_put()
   devm_clk_hw_register()
   devm_of_clk_add_hw_provider()

Makefile

@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 4
 PATCHLEVEL = 19
-SUBLEVEL = 322
+SUBLEVEL = 324
 EXTRAVERSION =
 NAME = "People's Front"
 

arch/arm/boot/dts/rk3036-kylin.dts

@@ -300,8 +300,8 @@
 &i2c2 {
 	status = "okay";
 
-	rt5616: rt5616@1b {
+	rt5616: audio-codec@1b {
-		compatible = "rt5616";
+		compatible = "realtek,rt5616";
 		reg = <0x1b>;
 		clocks = <&cru SCLK_I2S_OUT>;
 		clock-names = "mclk";

arch/arm/boot/dts/rk3036.dtsi

@@ -316,12 +316,13 @@
 		};
 	};
 
-	acodec: acodec-ana@20030000 {
+	acodec: audio-codec@20030000 {
-		compatible = "rk3036-codec";
+		compatible = "rockchip,rk3036-codec";
 		reg = <0x20030000 0x4000>;
-		rockchip,grf = <&grf>;
 		clock-names = "acodec_pclk";
 		clocks = <&cru PCLK_ACODEC>;
+		rockchip,grf = <&grf>;
+		#sound-dai-cells = <0>;
 		status = "disabled";
 	};
 
@@ -331,7 +332,6 @@
 		interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&cru  PCLK_HDMI>;
 		clock-names = "pclk";
-		rockchip,grf = <&grf>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&hdmi_ctl>;
 		status = "disabled";

arch/arm/mach-realview/platsmp-dt.c

@@ -70,6 +70,7 @@ static void __init realview_smp_prepare_cpus(unsigned int max_cpus)
 		return;
 	}
 	map = syscon_node_to_regmap(np);
+	of_node_put(np);
 	if (IS_ERR(map)) {
 		pr_err("PLATSMP: No syscon regmap\n");
 		return;

arch/arm64/Kconfig

@@ -591,6 +591,7 @@ config ARM64_ERRATUM_3194386
 	  * ARM Cortex-A78C erratum 3324346
 	  * ARM Cortex-A78C erratum 3324347
 	  * ARM Cortex-A710 erratam 3324338
+	  * ARM Cortex-A715 errartum 3456084
 	  * ARM Cortex-A720 erratum 3456091
 	  * ARM Cortex-A725 erratum 3456106
 	  * ARM Cortex-X1 erratum 3324344
@@ -601,6 +602,7 @@ config ARM64_ERRATUM_3194386
 	  * ARM Cortex-X925 erratum 3324334
 	  * ARM Neoverse-N1 erratum 3324349
 	  * ARM Neoverse N2 erratum 3324339
+	  * ARM Neoverse-N3 erratum 3456111
 	  * ARM Neoverse-V1 erratum 3324341
 	  * ARM Neoverse V2 erratum 3324336
 	  * ARM Neoverse-V3 erratum 3312417

arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi

@@ -147,6 +147,22 @@
 	status = "okay";
 };
 
+&gpio3 {
+	/*
+	 * The Qseven BIOS_DISABLE signal on the RK3399-Q7 keeps the on-module
+	 * eMMC and SPI flash powered-down initially (in fact it keeps the
+	 * reset signal asserted). BIOS_DISABLE_OVERRIDE pin allows to override
+	 * that signal so that eMMC and SPI can be used regardless of the state
+	 * of the signal.
+	 */
+	bios-disable-override-hog {
+		gpios = <RK_PD5 GPIO_ACTIVE_LOW>;
+		gpio-hog;
+		line-name = "bios_disable_override";
+		output-high;
+	};
+};
+
 &gmac {
 	assigned-clocks = <&cru SCLK_RMII_SRC>;
 	assigned-clock-parents = <&clkin_gmac>;
@@ -433,9 +449,14 @@
 
 &pinctrl {
 	pinctrl-names = "default";
-	pinctrl-0 = <&q7_thermal_pin>;
+	pinctrl-0 = <&q7_thermal_pin &bios_disable_override_hog_pin>;
 
 	gpios {
+		bios_disable_override_hog_pin: bios-disable-override-hog-pin {
+			rockchip,pins =
+				<3 RK_PD5 RK_FUNC_GPIO &pcfg_pull_down>;
+		};
+
 		q7_thermal_pin: q7-thermal-pin {
 			rockchip,pins =
 				<0 RK_PA3 RK_FUNC_GPIO &pcfg_pull_up>;

arch/arm64/boot/dts/rockchip/rk3399-sapphire-excavator.dts

@@ -123,7 +123,7 @@
 	status = "okay";
 
 	rt5651: rt5651@1a {
-		compatible = "rockchip,rt5651";
+		compatible = "realtek,rt5651";
 		reg = <0x1a>;
 		clocks = <&cru SCLK_I2S_8CH_OUT>;
 		clock-names = "mclk";

arch/arm64/include/asm/cputype.h

@@ -89,6 +89,7 @@
 #define ARM_CPU_PART_CORTEX_A78		0xD41
 #define ARM_CPU_PART_CORTEX_X1		0xD44
 #define ARM_CPU_PART_CORTEX_A710	0xD47
+#define ARM_CPU_PART_CORTEX_A715	0xD4D
 #define ARM_CPU_PART_CORTEX_X2		0xD48
 #define ARM_CPU_PART_NEOVERSE_N2	0xD49
 #define ARM_CPU_PART_CORTEX_A78C	0xD4B
@@ -108,6 +109,7 @@
 #define ARM_CPU_PART_NEOVERSE_V3	0xD84
 #define ARM_CPU_PART_CORTEX_X925	0xD85
 #define ARM_CPU_PART_CORTEX_A725	0xD87
+#define ARM_CPU_PART_NEOVERSE_N3	0xD8E
 
 #define APM_CPU_PART_POTENZA		0x000
 
@@ -142,6 +144,7 @@
 #define MIDR_CORTEX_A78	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A78)
 #define MIDR_CORTEX_X1	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X1)
 #define MIDR_CORTEX_A710 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A710)
+#define MIDR_CORTEX_A715 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A715)
 #define MIDR_CORTEX_X2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X2)
 #define MIDR_NEOVERSE_N2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N2)
 #define MIDR_CORTEX_A78C	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A78C)
@@ -161,6 +164,7 @@
 #define MIDR_NEOVERSE_V3 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_V3)
 #define MIDR_CORTEX_X925 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X925)
 #define MIDR_CORTEX_A725 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A725)
+#define MIDR_NEOVERSE_N3 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N3)
 #define MIDR_THUNDERX	MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX)
 #define MIDR_THUNDERX_81XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_81XX)
 #define MIDR_THUNDERX_83XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_83XX)

arch/arm64/include/asm/uprobes.h

@@ -13,21 +13,19 @@
 #include <asm/insn.h>
 #include <asm/probes.h>
 
-#define MAX_UINSN_BYTES		AARCH64_INSN_SIZE
+#define UPROBE_SWBP_INSN	cpu_to_le32(BRK64_OPCODE_UPROBES)
-
-#define UPROBE_SWBP_INSN	BRK64_OPCODE_UPROBES
 #define UPROBE_SWBP_INSN_SIZE	AARCH64_INSN_SIZE
-#define UPROBE_XOL_SLOT_BYTES	MAX_UINSN_BYTES
+#define UPROBE_XOL_SLOT_BYTES	AARCH64_INSN_SIZE
 
-typedef u32 uprobe_opcode_t;
+typedef __le32 uprobe_opcode_t;
 
 struct arch_uprobe_task {
 };
 
 struct arch_uprobe {
 	union {
-		u8 insn[MAX_UINSN_BYTES];
+		__le32 insn;
-		u8 ixol[MAX_UINSN_BYTES];
+		__le32 ixol;
 	};
 	struct arch_probe_insn api;
 	bool simulate;

arch/arm64/kernel/cpu_errata.c

@@ -763,6 +763,7 @@ static const struct midr_range erratum_spec_ssbs_list[] = {
 	MIDR_ALL_VERSIONS(MIDR_CORTEX_A78),
 	MIDR_ALL_VERSIONS(MIDR_CORTEX_A78C),
 	MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
+	MIDR_ALL_VERSIONS(MIDR_CORTEX_A715),
 	MIDR_ALL_VERSIONS(MIDR_CORTEX_A720),
 	MIDR_ALL_VERSIONS(MIDR_CORTEX_A725),
 	MIDR_ALL_VERSIONS(MIDR_CORTEX_X1),
@@ -773,6 +774,7 @@ static const struct midr_range erratum_spec_ssbs_list[] = {
 	MIDR_ALL_VERSIONS(MIDR_CORTEX_X925),
 	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1),
 	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
+	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N3),
 	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V1),
 	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V2),
 	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V3),

arch/arm64/kernel/probes/decode-insn.c

@@ -104,10 +104,6 @@ arm_probe_decode_insn(probe_opcode_t insn, struct arch_probe_insn *api)
 	    aarch64_insn_is_blr(insn) ||
 	    aarch64_insn_is_ret(insn)) {
 		api->handler = simulate_br_blr_ret;
-	} else if (aarch64_insn_is_ldr_lit(insn)) {
-		api->handler = simulate_ldr_literal;
-	} else if (aarch64_insn_is_ldrsw_lit(insn)) {
-		api->handler = simulate_ldrsw_literal;
 	} else {
 		/*
 		 * Instruction cannot be stepped out-of-line and we don't
@@ -145,6 +141,17 @@ arm_kprobe_decode_insn(kprobe_opcode_t *addr, struct arch_specific_insn *asi)
 	probe_opcode_t insn = le32_to_cpu(*addr);
 	probe_opcode_t *scan_end = NULL;
 	unsigned long size = 0, offset = 0;
+	struct arch_probe_insn *api = &asi->api;
+
+	if (aarch64_insn_is_ldr_lit(insn)) {
+		api->handler = simulate_ldr_literal;
+		decoded = INSN_GOOD_NO_SLOT;
+	} else if (aarch64_insn_is_ldrsw_lit(insn)) {
+		api->handler = simulate_ldrsw_literal;
+		decoded = INSN_GOOD_NO_SLOT;
+	} else {
+		decoded = arm_probe_decode_insn(insn, &asi->api);
+	}
 
 	/*
 	 * If there's a symbol defined in front of and near enough to
@@ -162,7 +169,6 @@ arm_kprobe_decode_insn(kprobe_opcode_t *addr, struct arch_specific_insn *asi)
 		else
 			scan_end = addr - MAX_ATOMIC_CONTEXT_SIZE;
 	}
-	decoded = arm_probe_decode_insn(insn, &asi->api);
 
 	if (decoded != INSN_REJECTED && scan_end)
 		if (is_probed_address_atomic(addr - 1, scan_end))

arch/arm64/kernel/probes/simulate-insn.c

@@ -178,17 +178,15 @@ simulate_tbz_tbnz(u32 opcode, long addr, struct pt_regs *regs)
 void __kprobes
 simulate_ldr_literal(u32 opcode, long addr, struct pt_regs *regs)
 {
-	u64 *load_addr;
+	unsigned long load_addr;
 	int xn = opcode & 0x1f;
-	int disp;
 
-	disp = ldr_displacement(opcode);
+	load_addr = addr + ldr_displacement(opcode);
-	load_addr = (u64 *) (addr + disp);
 
 	if (opcode & (1 << 30))	/* x0-x30 */
-		set_x_reg(regs, xn, *load_addr);
+		set_x_reg(regs, xn, READ_ONCE(*(u64 *)load_addr));
 	else			/* w0-w30 */
-		set_w_reg(regs, xn, *load_addr);
+		set_w_reg(regs, xn, READ_ONCE(*(u32 *)load_addr));
 
 	instruction_pointer_set(regs, instruction_pointer(regs) + 4);
 }
@@ -196,14 +194,12 @@ simulate_ldr_literal(u32 opcode, long addr, struct pt_regs *regs)
 void __kprobes
 simulate_ldrsw_literal(u32 opcode, long addr, struct pt_regs *regs)
 {
-	s32 *load_addr;
+	unsigned long load_addr;
 	int xn = opcode & 0x1f;
-	int disp;
 
-	disp = ldr_displacement(opcode);
+	load_addr = addr + ldr_displacement(opcode);
-	load_addr = (s32 *) (addr + disp);
 
-	set_x_reg(regs, xn, *load_addr);
+	set_x_reg(regs, xn, READ_ONCE(*(s32 *)load_addr));
 
 	instruction_pointer_set(regs, instruction_pointer(regs) + 4);
 }

arch/arm64/kernel/probes/uprobes.c

@@ -45,7 +45,7 @@ int arch_uprobe_analyze_insn(struct arch_uprobe *auprobe, struct mm_struct *mm,
 	else if (!IS_ALIGNED(addr, AARCH64_INSN_SIZE))
 		return -EINVAL;
 
-	insn = *(probe_opcode_t *)(&auprobe->insn[0]);
+	insn = le32_to_cpu(auprobe->insn);
 
 	switch (arm_probe_decode_insn(insn, &auprobe->api)) {
 	case INSN_REJECTED:
@@ -111,7 +111,7 @@ bool arch_uprobe_skip_sstep(struct arch_uprobe *auprobe, struct pt_regs *regs)
 	if (!auprobe->simulate)
 		return false;
 
-	insn = *(probe_opcode_t *)(&auprobe->insn[0]);
+	insn = le32_to_cpu(auprobe->insn);
 	addr = instruction_pointer(regs);
 
 	if (auprobe->api.handler)

arch/microblaze/mm/init.c

@@ -289,11 +289,6 @@ asmlinkage void __init mmu_init(void)
 {
 	unsigned int kstart, ksize;
 
-	if (!memblock.reserved.cnt) {
-		pr_emerg("Error memory count\n");
-		machine_restart(NULL);
-	}
-
 	if ((u32) memblock.memory.regions[0].size < 0x400000) {
 		pr_emerg("Memory must be greater than 4MB\n");
 		machine_restart(NULL);

arch/parisc/kernel/entry.S

@@ -1089,8 +1089,7 @@ ENTRY_CFI(intr_save)		/* for os_hpmc */
 	STREG           %r16, PT_ISR(%r29)
 	STREG           %r17, PT_IOR(%r29)
 
-#if 0 && defined(CONFIG_64BIT)
+#if defined(CONFIG_64BIT)
-	/* Revisit when we have 64-bit code above 4Gb */
 	b,n		intr_save2
 
 skip_save_ior:
@@ -1098,8 +1097,7 @@ skip_save_ior:
 	 * need to adjust iasq/iaoq here in the same way we adjusted isr/ior
 	 * above.
 	 */
-	extrd,u,*	%r8,PSW_W_BIT,1,%r1
+	bb,COND(>=),n	%r8,PSW_W_BIT,intr_save2
-	cmpib,COND(=),n	1,%r1,intr_save2
 	LDREG		PT_IASQ0(%r29), %r16
 	LDREG		PT_IAOQ0(%r29), %r17
 	/* adjust iasq/iaoq */

arch/parisc/kernel/syscall.S

@@ -217,10 +217,10 @@ linux_gateway_entry:
 
 #ifdef CONFIG_64BIT
 	ldil	L%sys_call_table, %r1
-	or,=	%r2,%r2,%r2
+	or,ev	%r2,%r2,%r2
-	addil	L%(sys_call_table64-sys_call_table), %r1
+	ldil	L%sys_call_table64, %r1
 	ldo	R%sys_call_table(%r1), %r19
-	or,=	%r2,%r2,%r2
+	or,ev	%r2,%r2,%r2
 	ldo	R%sys_call_table64(%r1), %r19
 #else
 	load32	sys_call_table, %r19
@@ -355,10 +355,10 @@ tracesys_next:
 	extrd,u	%r19,63,1,%r2			/* W hidden in bottom bit */
 
 	ldil	L%sys_call_table, %r1
-	or,=	%r2,%r2,%r2
+	or,ev	%r2,%r2,%r2
-	addil	L%(sys_call_table64-sys_call_table), %r1
+	ldil	L%sys_call_table64, %r1
 	ldo	R%sys_call_table(%r1), %r19
-	or,=	%r2,%r2,%r2
+	or,ev	%r2,%r2,%r2
 	ldo	R%sys_call_table64(%r1), %r19
 #else
 	load32	sys_call_table, %r19
@@ -930,6 +930,8 @@ ENTRY(sys_call_table)
 END(sys_call_table)
 
 #ifdef CONFIG_64BIT
+#undef __SYSCALL_WITH_COMPAT
+#define __SYSCALL_WITH_COMPAT(nr, native, compat)	__SYSCALL(nr, native)
 	.align 8
 ENTRY(sys_call_table64)
 #define SYSCALL_TABLE_64BIT

arch/powerpc/platforms/powernv/opal-irqchip.c

@@ -289,6 +289,7 @@ int __init opal_event_init(void)
 				 name, NULL);
 		if (rc) {
 			pr_warn("Error %d requesting OPAL irq %d\n", rc, (int)r->start);
+			kfree(name);
 			continue;
 		}
 	}

arch/riscv/Kconfig

@@ -84,6 +84,11 @@ config GENERIC_CSUM
 config GENERIC_HWEIGHT
 	def_bool y
 
+config ILLEGAL_POINTER_VALUE
+	hex
+	default 0 if 32BIT
+	default 0xdead000000000000 if 64BIT
+
 config PGTABLE_LEVELS
 	int
 	default 3 if 64BIT

arch/s390/include/asm/facility.h

@@ -53,8 +53,10 @@ static inline int test_facility(unsigned long nr)
 	unsigned long facilities_als[] = { FACILITIES_ALS };
 
 	if (__builtin_constant_p(nr) && nr < sizeof(facilities_als) * 8) {
-		if (__test_facility(nr, &facilities_als))
+		if (__test_facility(nr, &facilities_als)) {
-			return 1;
+			if (!__is_defined(__DECOMPRESSOR))
+				return 1;
+		}
 	}
 	return __test_facility(nr, &S390_lowcore.stfle_fac_list);
 }

arch/s390/kernel/perf_cpum_sf.c

@@ -1360,7 +1360,7 @@ static int aux_output_begin(struct perf_output_handle *handle,
 	unsigned long head, base, offset;
 	struct hws_trailer_entry *te;
 
-	if (WARN_ON_ONCE(handle->head & ~PAGE_MASK))
+	if (handle->head & ~PAGE_MASK)
 		return -EINVAL;
 
 	aux->head = handle->head >> PAGE_SHIFT;
@@ -1528,7 +1528,7 @@ static void hw_collect_aux(struct cpu_hw_sf *cpuhw)
 	unsigned long num_sdb;
 
 	aux = perf_get_aux(handle);
-	if (WARN_ON_ONCE(!aux))
+	if (!aux)
 		return;
 
 	/* Inform user space new data arrived */
@@ -1547,7 +1547,7 @@ static void hw_collect_aux(struct cpu_hw_sf *cpuhw)
 			debug_sprintf_event(sfdbg, 1, "AUX buffer used up\n");
 			break;
 		}
-		if (WARN_ON_ONCE(!aux))
+		if (!aux)
 			return;
 
 		/* Update head and alert_mark to new position */
@@ -1746,12 +1746,8 @@ static void cpumsf_pmu_start(struct perf_event *event, int flags)
 {
 	struct cpu_hw_sf *cpuhw = this_cpu_ptr(&cpu_hw_sf);
 
-	if (WARN_ON_ONCE(!(event->hw.state & PERF_HES_STOPPED)))
+	if (!(event->hw.state & PERF_HES_STOPPED))
 		return;
-
-	if (flags & PERF_EF_RELOAD)
-		WARN_ON_ONCE(!(event->hw.state & PERF_HES_UPTODATE));
-
 	perf_pmu_disable(event->pmu);
 	event->hw.state = 0;
 	cpuhw->lsctl.cs = 1;

arch/s390/kvm/diag.c

@@ -78,7 +78,7 @@ static int __diag_page_ref_service(struct kvm_vcpu *vcpu)
 	vcpu->stat.diagnose_258++;
 	if (vcpu->run->s.regs.gprs[rx] & 7)
 		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
-	rc = read_guest(vcpu, vcpu->run->s.regs.gprs[rx], rx, &parm, sizeof(parm));
+	rc = read_guest_real(vcpu, vcpu->run->s.regs.gprs[rx], &parm, sizeof(parm));
 	if (rc)
 		return kvm_s390_inject_prog_cond(vcpu, rc);
 	if (parm.parm_version != 2 || parm.parm_len < 5 || parm.code != 0x258)

arch/s390/kvm/gaccess.c

@@ -794,46 +794,102 @@ static int low_address_protection_enabled(struct kvm_vcpu *vcpu,
 	return 1;
 }
 
-static int guest_page_range(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
+/**
-			    unsigned long *pages, unsigned long nr_pages,
+ * guest_range_to_gpas() - Calculate guest physical addresses of page fragments
-			    const union asce asce, enum gacc_mode mode)
+ * covering a logical range
+ * @vcpu: virtual cpu
+ * @ga: guest address, start of range
+ * @ar: access register
+ * @gpas: output argument, may be NULL
+ * @len: length of range in bytes
+ * @asce: address-space-control element to use for translation
+ * @mode: access mode
+ *
+ * Translate a logical range to a series of guest absolute addresses,
+ * such that the concatenation of page fragments starting at each gpa make up
+ * the whole range.
+ * The translation is performed as if done by the cpu for the given @asce, @ar,
+ * @mode and state of the @vcpu.
+ * If the translation causes an exception, its program interruption code is
+ * returned and the &struct kvm_s390_pgm_info pgm member of @vcpu is modified
+ * such that a subsequent call to kvm_s390_inject_prog_vcpu() will inject
+ * a correct exception into the guest.
+ * The resulting gpas are stored into @gpas, unless it is NULL.
+ *
+ * Note: All fragments except the first one start at the beginning of a page.
+ *	 When deriving the boundaries of a fragment from a gpa, all but the last
+ *	 fragment end at the end of the page.
+ *
+ * Return:
+ * * 0		- success
+ * * <0		- translation could not be performed, for example if  guest
+ *		  memory could not be accessed
+ * * >0		- an access exception occurred. In this case the returned value
+ *		  is the program interruption code and the contents of pgm may
+ *		  be used to inject an exception into the guest.
+ */
+static int guest_range_to_gpas(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
+			       unsigned long *gpas, unsigned long len,
+			       const union asce asce, enum gacc_mode mode)
 {
 	psw_t *psw = &vcpu->arch.sie_block->gpsw;
+	unsigned int offset = offset_in_page(ga);
+	unsigned int fragment_len;
 	int lap_enabled, rc = 0;
 	enum prot_type prot;
+	unsigned long gpa;
 
 	lap_enabled = low_address_protection_enabled(vcpu, asce);
-	while (nr_pages) {
+	while (min(PAGE_SIZE - offset, len) > 0) {
+		fragment_len = min(PAGE_SIZE - offset, len);
 		ga = kvm_s390_logical_to_effective(vcpu, ga);
 		if (mode == GACC_STORE && lap_enabled && is_low_address(ga))
 			return trans_exc(vcpu, PGM_PROTECTION, ga, ar, mode,
 					 PROT_TYPE_LA);
-		ga &= PAGE_MASK;
 		if (psw_bits(*psw).dat) {
-			rc = guest_translate(vcpu, ga, pages, asce, mode, &prot);
+			rc = guest_translate(vcpu, ga, &gpa, asce, mode, &prot);
 			if (rc < 0)
 				return rc;
 		} else {
-			*pages = kvm_s390_real_to_abs(vcpu, ga);
+			gpa = kvm_s390_real_to_abs(vcpu, ga);
-			if (kvm_is_error_gpa(vcpu->kvm, *pages))
+			if (kvm_is_error_gpa(vcpu->kvm, gpa))
 				rc = PGM_ADDRESSING;
 		}
 		if (rc)
 			return trans_exc(vcpu, rc, ga, ar, mode, prot);
-		ga += PAGE_SIZE;
+		if (gpas)
-		pages++;
+			*gpas++ = gpa;
-		nr_pages--;
+		offset = 0;
+		ga += fragment_len;
+		len -= fragment_len;
 	}
 	return 0;
 }
 
+static int access_guest_page(struct kvm *kvm, enum gacc_mode mode, gpa_t gpa,
+			     void *data, unsigned int len)
+{
+	const unsigned int offset = offset_in_page(gpa);
+	const gfn_t gfn = gpa_to_gfn(gpa);
+	int rc;
+
+	if (!gfn_to_memslot(kvm, gfn))
+		return PGM_ADDRESSING;
+	if (mode == GACC_STORE)
+		rc = kvm_write_guest_page(kvm, gfn, data, offset, len);
+	else
+		rc = kvm_read_guest_page(kvm, gfn, data, offset, len);
+	return rc;
+}
+
 int access_guest(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar, void *data,
 		 unsigned long len, enum gacc_mode mode)
 {
 	psw_t *psw = &vcpu->arch.sie_block->gpsw;
-	unsigned long _len, nr_pages, gpa, idx;
+	unsigned long nr_pages, idx;
-	unsigned long pages_array[2];
+	unsigned long gpa_array[2];
-	unsigned long *pages;
+	unsigned int fragment_len;
+	unsigned long *gpas;
 	int need_ipte_lock;
 	union asce asce;
 	int rc;
@@ -845,50 +901,45 @@ int access_guest(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar, void *data,
 	if (rc)
 		return rc;
 	nr_pages = (((ga & ~PAGE_MASK) + len - 1) >> PAGE_SHIFT) + 1;
-	pages = pages_array;
+	gpas = gpa_array;
-	if (nr_pages > ARRAY_SIZE(pages_array))
+	if (nr_pages > ARRAY_SIZE(gpa_array))
-		pages = vmalloc(array_size(nr_pages, sizeof(unsigned long)));
+		gpas = vmalloc(array_size(nr_pages, sizeof(unsigned long)));
-	if (!pages)
+	if (!gpas)
 		return -ENOMEM;
 	need_ipte_lock = psw_bits(*psw).dat && !asce.r;
 	if (need_ipte_lock)
 		ipte_lock(vcpu);
-	rc = guest_page_range(vcpu, ga, ar, pages, nr_pages, asce, mode);
+	rc = guest_range_to_gpas(vcpu, ga, ar, gpas, len, asce, mode);
 	for (idx = 0; idx < nr_pages && !rc; idx++) {
-		gpa = *(pages + idx) + (ga & ~PAGE_MASK);
+		fragment_len = min(PAGE_SIZE - offset_in_page(gpas[idx]), len);
-		_len = min(PAGE_SIZE - (gpa & ~PAGE_MASK), len);
+		rc = access_guest_page(vcpu->kvm, mode, gpas[idx], data, fragment_len);
-		if (mode == GACC_STORE)
+		len -= fragment_len;
-			rc = kvm_write_guest(vcpu->kvm, gpa, data, _len);
+		data += fragment_len;
-		else
-			rc = kvm_read_guest(vcpu->kvm, gpa, data, _len);
-		len -= _len;
-		ga += _len;
-		data += _len;
 	}
 	if (need_ipte_lock)
 		ipte_unlock(vcpu);
-	if (nr_pages > ARRAY_SIZE(pages_array))
+	if (nr_pages > ARRAY_SIZE(gpa_array))
-		vfree(pages);
+		vfree(gpas);
 	return rc;
 }
 
 int access_guest_real(struct kvm_vcpu *vcpu, unsigned long gra,
 		      void *data, unsigned long len, enum gacc_mode mode)
 {
-	unsigned long _len, gpa;
+	unsigned int fragment_len;
+	unsigned long gpa;
 	int rc = 0;
 
 	while (len && !rc) {
 		gpa = kvm_s390_real_to_abs(vcpu, gra);
-		_len = min(PAGE_SIZE - (gpa & ~PAGE_MASK), len);
+		fragment_len = min(PAGE_SIZE - offset_in_page(gpa), len);
-		if (mode)
+		rc = access_guest_page(vcpu->kvm, mode, gpa, data, fragment_len);
-			rc = write_guest_abs(vcpu, gpa, data, _len);
+		len -= fragment_len;
-		else
+		gra += fragment_len;
-			rc = read_guest_abs(vcpu, gpa, data, _len);
+		data += fragment_len;
-		len -= _len;
-		gra += _len;
-		data += _len;
 	}
+	if (rc > 0)
+		vcpu->arch.pgm.code = rc;
 	return rc;
 }
 
@@ -904,8 +955,6 @@ int access_guest_real(struct kvm_vcpu *vcpu, unsigned long gra,
 int guest_translate_address(struct kvm_vcpu *vcpu, unsigned long gva, u8 ar,
 			    unsigned long *gpa, enum gacc_mode mode)
 {
-	psw_t *psw = &vcpu->arch.sie_block->gpsw;
-	enum prot_type prot;
 	union asce asce;
 	int rc;
 
@@ -913,23 +962,7 @@ int guest_translate_address(struct kvm_vcpu *vcpu, unsigned long gva, u8 ar,
 	rc = get_vcpu_asce(vcpu, &asce, gva, ar, mode);
 	if (rc)
 		return rc;
-	if (is_low_address(gva) && low_address_protection_enabled(vcpu, asce)) {
+	return guest_range_to_gpas(vcpu, gva, ar, gpa, 1, asce, mode);
-		if (mode == GACC_STORE)
-			return trans_exc(vcpu, PGM_PROTECTION, gva, 0,
-					 mode, PROT_TYPE_LA);
-	}
-
-	if (psw_bits(*psw).dat && !asce.r) {	/* Use DAT? */
-		rc = guest_translate(vcpu, gva, gpa, asce, mode, &prot);
-		if (rc > 0)
-			return trans_exc(vcpu, rc, gva, 0, mode, prot);
-	} else {
-		*gpa = kvm_s390_real_to_abs(vcpu, gva);
-		if (kvm_is_error_gpa(vcpu->kvm, *gpa))
-			return trans_exc(vcpu, rc, gva, PGM_ADDRESSING, mode, 0);
-	}
-
-	return rc;
 }
 
 /**
@@ -938,17 +971,14 @@ int guest_translate_address(struct kvm_vcpu *vcpu, unsigned long gva, u8 ar,
 int check_gva_range(struct kvm_vcpu *vcpu, unsigned long gva, u8 ar,
 		    unsigned long length, enum gacc_mode mode)
 {
-	unsigned long gpa;
+	union asce asce;
-	unsigned long currlen;
 	int rc = 0;
 
+	rc = get_vcpu_asce(vcpu, &asce, gva, ar, mode);
+	if (rc)
+		return rc;
 	ipte_lock(vcpu);
-	while (length > 0 && !rc) {
+	rc = guest_range_to_gpas(vcpu, gva, ar, NULL, length, asce, mode);
-		currlen = min(length, PAGE_SIZE - (gva % PAGE_SIZE));
-		rc = guest_translate_address(vcpu, gva, ar, &gpa, mode);
-		gva += currlen;
-		length -= currlen;
-	}
 	ipte_unlock(vcpu);
 
 	return rc;

arch/s390/kvm/gaccess.h

@@ -344,11 +344,12 @@ int read_guest_abs(struct kvm_vcpu *vcpu, unsigned long gpa, void *data,
  * @len: number of bytes to copy
  *
  * Copy @len bytes from @data (kernel space) to @gra (guest real address).
- * It is up to the caller to ensure that the entire guest memory range is
- * valid memory before calling this function.
  * Guest low address and key protection are not checked.
  *
- * Returns zero on success or -EFAULT on error.
+ * Returns zero on success, -EFAULT when copying from @data failed, or
+ * PGM_ADRESSING in case @gra is outside a memslot. In this case, pgm check info
+ * is also stored to allow injecting into the guest (if applicable) using
+ * kvm_s390_inject_prog_cond().
  *
  * If an error occurs data may have been copied partially to guest memory.
  */
@@ -367,11 +368,12 @@ int write_guest_real(struct kvm_vcpu *vcpu, unsigned long gra, void *data,
  * @len: number of bytes to copy
  *
  * Copy @len bytes from @gra (guest real address) to @data (kernel space).
- * It is up to the caller to ensure that the entire guest memory range is
- * valid memory before calling this function.
  * Guest key protection is not checked.
  *
- * Returns zero on success or -EFAULT on error.
+ * Returns zero on success, -EFAULT when copying to @data failed, or
+ * PGM_ADRESSING in case @gra is outside a memslot. In this case, pgm check info
+ * is also stored to allow injecting into the guest (if applicable) using
+ * kvm_s390_inject_prog_cond().
  *
  * If an error occurs data may have been copied partially to kernel space.
  */

arch/s390/mm/cmm.c

@@ -98,11 +98,12 @@ static long cmm_alloc_pages(long nr, long *counter,
 		(*counter)++;
 		spin_unlock(&cmm_lock);
 		nr--;
+		cond_resched();
 	}
 	return nr;
 }
 
-static long cmm_free_pages(long nr, long *counter, struct cmm_page_array **list)
+static long __cmm_free_pages(long nr, long *counter, struct cmm_page_array **list)
 {
 	struct cmm_page_array *pa;
 	unsigned long addr;
@@ -126,6 +127,21 @@ static long cmm_free_pages(long nr, long *counter, struct cmm_page_array **list)
 	return nr;
 }
 
+static long cmm_free_pages(long nr, long *counter, struct cmm_page_array **list)
+{
+	long inc = 0;
+
+	while (nr) {
+		inc = min(256L, nr);
+		nr -= inc;
+		inc = __cmm_free_pages(inc, counter, list);
+		if (inc)
+			break;
+		cond_resched();
+	}
+	return nr + inc;
+}
+
 static int cmm_oom_notify(struct notifier_block *self,
 			  unsigned long dummy, void *parm)
 {

arch/x86/include/asm/cpufeatures.h

@@ -216,7 +216,7 @@
 #define X86_FEATURE_SPEC_STORE_BYPASS_DISABLE	( 7*32+23) /* "" Disable Speculative Store Bypass. */
 #define X86_FEATURE_LS_CFG_SSBD		( 7*32+24)  /* "" AMD SSBD implementation via LS_CFG MSR */
 #define X86_FEATURE_IBRS		( 7*32+25) /* Indirect Branch Restricted Speculation */
-#define X86_FEATURE_IBPB		( 7*32+26) /* Indirect Branch Prediction Barrier */
+#define X86_FEATURE_IBPB		( 7*32+26) /* "ibpb" Indirect Branch Prediction Barrier without a guaranteed RSB flush */
 #define X86_FEATURE_STIBP		( 7*32+27) /* Single Thread Indirect Branch Predictors */
 #define X86_FEATURE_ZEN			( 7*32+28) /* "" CPU is AMD family 0x17 (Zen) */
 #define X86_FEATURE_L1TF_PTEINV		( 7*32+29) /* "" L1TF workaround PTE inversion */
@@ -306,6 +306,7 @@
 #define X86_FEATURE_VIRT_SSBD		(13*32+25) /* Virtualized Speculative Store Bypass Disable */
 #define X86_FEATURE_AMD_SSB_NO		(13*32+26) /* "" Speculative Store Bypass is fixed in hardware. */
 #define X86_FEATURE_BTC_NO		(13*32+29) /* "" Not vulnerable to Branch Type Confusion */
+#define X86_FEATURE_AMD_IBPB_RET	(13*32+30) /* "" IBPB clears return address predictor */
 
 /* Thermal and Power Management Leaf, CPUID level 0x00000006 (EAX), word 14 */
 #define X86_FEATURE_DTHERM		(14*32+ 0) /* Digital Thermal Sensor */

arch/x86/kernel/apic/apic.c

@@ -484,7 +484,19 @@ static int lapic_timer_shutdown(struct clock_event_device *evt)
 	v = apic_read(APIC_LVTT);
 	v |= (APIC_LVT_MASKED | LOCAL_TIMER_VECTOR);
 	apic_write(APIC_LVTT, v);
-	apic_write(APIC_TMICT, 0);
+
+	/*
+	 * Setting APIC_LVT_MASKED (above) should be enough to tell
+	 * the hardware that this timer will never fire. But AMD
+	 * erratum 411 and some Intel CPU behavior circa 2024 say
+	 * otherwise.  Time for belt and suspenders programming: mask
+	 * the timer _and_ zero the counter registers:
+	 */
+	if (v & APIC_LVT_TIMER_TSCDEADLINE)
+		wrmsrl(MSR_IA32_TSC_DEADLINE, 0);
+	else
+		apic_write(APIC_TMICT, 0);
+
 	return 0;
 }
 

arch/x86/kernel/cpu/mshyperv.c

@@ -243,6 +243,7 @@ static void __init ms_hyperv_init_platform(void)
 	    ms_hyperv.misc_features & HV_FEATURE_FREQUENCY_MSRS_AVAILABLE) {
 		x86_platform.calibrate_tsc = hv_get_tsc_khz;
 		x86_platform.calibrate_cpu = hv_get_tsc_khz;
+		setup_force_cpu_cap(X86_FEATURE_TSC_KNOWN_FREQ);
 	}
 
 	if (ms_hyperv.hints & HV_X64_ENLIGHTENED_VMCS_RECOMMENDED) {

arch/x86/xen/setup.c

@@ -862,7 +862,7 @@ char * __init xen_memory_setup(void)
 	 * to relocating (and even reusing) pages with kernel text or data.
 	 */
 	if (xen_is_e820_reserved(__pa_symbol(_text),
-			__pa_symbol(__bss_stop) - __pa_symbol(_text))) {
+				 __pa_symbol(_end) - __pa_symbol(_text))) {
 		xen_raw_console_write("Xen hypervisor allocated kernel memory conflicts with E820 map\n");
 		BUG();
 	}

block/bfq-iosched.c

@@ -2226,8 +2226,12 @@ bfq_setup_cooperator(struct bfq_data *bfqd, struct bfq_queue *bfqq,
 	struct bfq_queue *in_service_bfqq, *new_bfqq;
 
 	/* if a merge has already been setup, then proceed with that first */
-	if (bfqq->new_bfqq)
+	new_bfqq = bfqq->new_bfqq;
-		return bfqq->new_bfqq;
+	if (new_bfqq) {
+		while (new_bfqq->new_bfqq)
+			new_bfqq = new_bfqq->new_bfqq;
+		return new_bfqq;
+	}
 
 	/*
 	 * Prevent bfqq from being merged if it has been created too
@@ -5033,7 +5037,7 @@ bfq_split_bfqq(struct bfq_io_cq *bic, struct bfq_queue *bfqq)
 {
 	bfq_log_bfqq(bfqq->bfqd, bfqq, "splitting queue");
 
-	if (bfqq_process_refs(bfqq) == 1) {
+	if (bfqq_process_refs(bfqq) == 1 && !bfqq->new_bfqq) {
 		bfqq->pid = current->pid;
 		bfq_clear_bfqq_coop(bfqq);
 		bfq_clear_bfqq_split_coop(bfqq);
@@ -5218,7 +5222,8 @@ static struct bfq_queue *bfq_init_rq(struct request *rq)
 	 * addition, if the queue has also just been split, we have to
 	 * resume its state.
 	 */
-	if (likely(bfqq != &bfqd->oom_bfqq) && bfqq_process_refs(bfqq) == 1) {
+	if (likely(bfqq != &bfqd->oom_bfqq) && !bfqq->new_bfqq &&
+	    bfqq_process_refs(bfqq) == 1) {
 		bfqq->bic = bic;
 		if (split) {
 			/*

crypto/aead.c

@@ -45,8 +45,7 @@ static int setkey_unaligned(struct crypto_aead *tfm, const u8 *key,
 	alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
 	memcpy(alignbuffer, key, keylen);
 	ret = crypto_aead_alg(tfm)->setkey(tfm, alignbuffer, keylen);
-	memset(alignbuffer, 0, keylen);
+	kzfree(buffer);
-	kfree(buffer);
 	return ret;
 }
 

crypto/cipher.c

@@ -38,8 +38,7 @@ static int setkey_unaligned(struct crypto_tfm *tfm, const u8 *key,
 	alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
 	memcpy(alignbuffer, key, keylen);
 	ret = cia->cia_setkey(tfm, alignbuffer, keylen);
-	memset(alignbuffer, 0, keylen);
+	kzfree(buffer);
-	kfree(buffer);
 	return ret;
 
 }

drivers/acpi/acpica/dbconvert.c

@@ -170,6 +170,8 @@ acpi_status acpi_db_convert_to_package(char *string, union acpi_object *object)
 	elements =
 	    ACPI_ALLOCATE_ZEROED(DB_DEFAULT_PKG_ELEMENTS *
 				 sizeof(union acpi_object));
+	if (!elements)
+		return (AE_NO_MEMORY);
 
 	this = string;
 	for (i = 0; i < (DB_DEFAULT_PKG_ELEMENTS - 1); i++) {

drivers/acpi/acpica/exprep.c

@@ -437,6 +437,9 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
 
 		if (info->connection_node) {
 			second_desc = info->connection_node->object;
+			if (second_desc == NULL) {
+				break;
+			}
 			if (!(second_desc->common.flags & AOPOBJ_DATA_VALID)) {
 				status =
 				    acpi_ds_get_buffer_arguments(second_desc);

drivers/acpi/acpica/psargs.c

@@ -25,6 +25,8 @@ acpi_ps_get_next_package_length(struct acpi_parse_state *parser_state);
 static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
 						       *parser_state);
 
+static void acpi_ps_free_field_list(union acpi_parse_object *start);
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ps_get_next_package_length
@@ -683,6 +685,39 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
 	return_PTR(field);
 }
 
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ps_free_field_list
+ *
+ * PARAMETERS:  start               - First Op in field list
+ *
+ * RETURN:      None.
+ *
+ * DESCRIPTION: Free all Op objects inside a field list.
+ *
+ ******************************************************************************/
+
+static void acpi_ps_free_field_list(union acpi_parse_object *start)
+{
+	union acpi_parse_object *cur = start;
+	union acpi_parse_object *next;
+	union acpi_parse_object *arg;
+
+	while (cur) {
+		next = cur->common.next;
+
+		/* AML_INT_CONNECTION_OP can have a single argument */
+
+		arg = acpi_ps_get_arg(cur, 0);
+		if (arg) {
+			acpi_ps_free_op(arg);
+		}
+
+		acpi_ps_free_op(cur);
+		cur = next;
+	}
+}
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ps_get_next_arg
@@ -751,6 +786,10 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
 			while (parser_state->aml < parser_state->pkg_end) {
 				field = acpi_ps_get_next_field(parser_state);
 				if (!field) {
+					if (arg) {
+						acpi_ps_free_field_list(arg);
+					}
+
 					return_ACPI_STATUS(AE_NO_MEMORY);
 				}
 
@@ -820,6 +859,10 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
 			    acpi_ps_get_next_namepath(walk_state, parser_state,
 						      arg,
 						      ACPI_NOT_METHOD_CALL);
+			if (ACPI_FAILURE(status)) {
+				acpi_ps_free_op(arg);
+				return_ACPI_STATUS(status);
+			}
 		} else {
 			/* Single complex argument, nothing returned */
 
@@ -854,6 +897,10 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
 			    acpi_ps_get_next_namepath(walk_state, parser_state,
 						      arg,
 						      ACPI_POSSIBLE_METHOD_CALL);
+			if (ACPI_FAILURE(status)) {
+				acpi_ps_free_op(arg);
+				return_ACPI_STATUS(status);
+			}
 
 			if (arg->common.aml_opcode == AML_INT_METHODCALL_OP) {
 

drivers/acpi/battery.c

@@ -713,27 +713,34 @@ static LIST_HEAD(acpi_battery_list);
 static LIST_HEAD(battery_hook_list);
 static DEFINE_MUTEX(hook_mutex);
 
-static void __battery_hook_unregister(struct acpi_battery_hook *hook, int lock)
+static void battery_hook_unregister_unlocked(struct acpi_battery_hook *hook)
 {
 	struct acpi_battery *battery;
+
 	/*
 	 * In order to remove a hook, we first need to
 	 * de-register all the batteries that are registered.
 	 */
-	if (lock)
-		mutex_lock(&hook_mutex);
 	list_for_each_entry(battery, &acpi_battery_list, list) {
 		hook->remove_battery(battery->bat);
 	}
-	list_del(&hook->list);
+	list_del_init(&hook->list);
-	if (lock)
+
-		mutex_unlock(&hook_mutex);
 	pr_info("extension unregistered: %s\n", hook->name);
 }
 
 void battery_hook_unregister(struct acpi_battery_hook *hook)
 {
-	__battery_hook_unregister(hook, 1);
+	mutex_lock(&hook_mutex);
+	/*
+	 * Ignore already unregistered battery hooks. This might happen
+	 * if a battery hook was previously unloaded due to an error when
+	 * adding a new battery.
+	 */
+	if (!list_empty(&hook->list))
+		battery_hook_unregister_unlocked(hook);
+
+	mutex_unlock(&hook_mutex);
 }
 EXPORT_SYMBOL_GPL(battery_hook_unregister);
 
@@ -742,7 +749,6 @@ void battery_hook_register(struct acpi_battery_hook *hook)
 	struct acpi_battery *battery;
 
 	mutex_lock(&hook_mutex);
-	INIT_LIST_HEAD(&hook->list);
 	list_add(&hook->list, &battery_hook_list);
 	/*
 	 * Now that the driver is registered, we need
@@ -759,7 +765,7 @@ void battery_hook_register(struct acpi_battery_hook *hook)
 			 * hooks.
 			 */
 			pr_err("extension failed to load: %s", hook->name);
-			__battery_hook_unregister(hook, 0);
+			battery_hook_unregister_unlocked(hook);
 			goto end;
 		}
 	}
@@ -796,7 +802,7 @@ static void battery_hook_add_battery(struct acpi_battery *battery)
 			 */
 			pr_err("error in extension, unloading: %s",
 					hook_node->name);
-			__battery_hook_unregister(hook_node, 0);
+			battery_hook_unregister_unlocked(hook_node);
 		}
 	}
 	mutex_unlock(&hook_mutex);
@@ -829,7 +835,7 @@ static void __exit battery_hook_exit(void)
 	 * need to remove the hooks.
 	 */
 	list_for_each_entry_safe(hook, ptr, &battery_hook_list, list) {
-		__battery_hook_unregister(hook, 1);
+		battery_hook_unregister(hook);
 	}
 	mutex_destroy(&hook_mutex);
 }

drivers/acpi/button.c

@@ -124,6 +124,17 @@ static const struct dmi_system_id lid_blacklst[] = {
 		},
 		.driver_data = (void *)(long)ACPI_BUTTON_LID_INIT_OPEN,
 	},
+	{
+		/*
+		 * Samsung galaxybook2 ,initial _LID device notification returns
+		 * lid closed.
+		 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "750XED"),
+		},
+		.driver_data = (void *)(long)ACPI_BUTTON_LID_INIT_OPEN,
+	},
 	{}
 };
 

drivers/acpi/device_sysfs.c

@@ -539,8 +539,9 @@ int acpi_device_setup_files(struct acpi_device *dev)
 	 * If device has _STR, 'description' file is created
 	 */
 	if (acpi_has_method(dev->handle, "_STR")) {
-		status = acpi_evaluate_object(dev->handle, "_STR",
+		status = acpi_evaluate_object_typed(dev->handle, "_STR",
-					NULL, &buffer);
+						    NULL, &buffer,
+						    ACPI_TYPE_BUFFER);
 		if (ACPI_FAILURE(status))
 			buffer.pointer = NULL;
 		dev->pnp.str_obj = buffer.pointer;

drivers/acpi/ec.c

@@ -807,6 +807,9 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec,
 	unsigned long tmp;
 	int ret = 0;
 
+	if (t->rdata)
+		memset(t->rdata, 0, t->rlen);
+
 	/* start transaction */
 	spin_lock_irqsave(&ec->lock, tmp);
 	/* Enable GPE for command processing (IBF=0/OBF=1) */
@@ -843,8 +846,6 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t)
 
 	if (!ec || (!t) || (t->wlen && !t->wdata) || (t->rlen && !t->rdata))
 		return -EINVAL;
-	if (t->rdata)
-		memset(t->rdata, 0, t->rlen);
 
 	mutex_lock(&ec->mutex);
 	if (ec->global_lock) {
@@ -871,7 +872,7 @@ static int acpi_ec_burst_enable(struct acpi_ec *ec)
 				.wdata = NULL, .rdata = &d,
 				.wlen = 0, .rlen = 1};
 
-	return acpi_ec_transaction(ec, &t);
+	return acpi_ec_transaction_unlocked(ec, &t);
 }
 
 static int acpi_ec_burst_disable(struct acpi_ec *ec)
@@ -881,7 +882,7 @@ static int acpi_ec_burst_disable(struct acpi_ec *ec)
 				.wlen = 0, .rlen = 0};
 
 	return (acpi_ec_read_status(ec) & ACPI_EC_FLAG_BURST) ?
-				acpi_ec_transaction(ec, &t) : 0;
+				acpi_ec_transaction_unlocked(ec, &t) : 0;
 }
 
 static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 *data)
@@ -897,6 +898,19 @@ static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 *data)
 	return result;
 }
 
+static int acpi_ec_read_unlocked(struct acpi_ec *ec, u8 address, u8 *data)
+{
+	int result;
+	u8 d;
+	struct transaction t = {.command = ACPI_EC_COMMAND_READ,
+				.wdata = &address, .rdata = &d,
+				.wlen = 1, .rlen = 1};
+
+	result = acpi_ec_transaction_unlocked(ec, &t);
+	*data = d;
+	return result;
+}
+
 static int acpi_ec_write(struct acpi_ec *ec, u8 address, u8 data)
 {
 	u8 wdata[2] = { address, data };
@@ -907,6 +921,16 @@ static int acpi_ec_write(struct acpi_ec *ec, u8 address, u8 data)
 	return acpi_ec_transaction(ec, &t);
 }
 
+static int acpi_ec_write_unlocked(struct acpi_ec *ec, u8 address, u8 data)
+{
+	u8 wdata[2] = { address, data };
+	struct transaction t = {.command = ACPI_EC_COMMAND_WRITE,
+				.wdata = wdata, .rdata = NULL,
+				.wlen = 2, .rlen = 0};
+
+	return acpi_ec_transaction_unlocked(ec, &t);
+}
+
 int ec_read(u8 addr, u8 *val)
 {
 	int err;
@@ -1320,6 +1344,7 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address,
 	struct acpi_ec *ec = handler_context;
 	int result = 0, i, bytes = bits / 8;
 	u8 *value = (u8 *)value64;
+	u32 glk;
 
 	if ((address > 0xFF) || !value || !handler_context)
 		return AE_BAD_PARAMETER;
@@ -1327,13 +1352,25 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address,
 	if (function != ACPI_READ && function != ACPI_WRITE)
 		return AE_BAD_PARAMETER;
 
+	mutex_lock(&ec->mutex);
+
+	if (ec->global_lock) {
+		acpi_status status;
+
+		status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
+		if (ACPI_FAILURE(status)) {
+			result = -ENODEV;
+			goto unlock;
+		}
+	}
+
 	if (ec->busy_polling || bits > 8)
 		acpi_ec_burst_enable(ec);
 
 	for (i = 0; i < bytes; ++i, ++address, ++value) {
 		result = (function == ACPI_READ) ?
-			acpi_ec_read(ec, address, value) :
+			acpi_ec_read_unlocked(ec, address, value) :
-			acpi_ec_write(ec, address, *value);
+			acpi_ec_write_unlocked(ec, address, *value);
 		if (result < 0)
 			break;
 	}
@@ -1341,6 +1378,12 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address,
 	if (ec->busy_polling || bits > 8)
 		acpi_ec_burst_disable(ec);
 
+	if (ec->global_lock)
+		acpi_release_global_lock(glk);
+
+unlock:
+	mutex_unlock(&ec->mutex);
+
 	switch (result) {
 	case -EINVAL:
 		return AE_BAD_PARAMETER;

drivers/acpi/pmic/tps68470_pmic.c

@@ -376,10 +376,8 @@ static int tps68470_pmic_opregion_probe(struct platform_device *pdev)
 	struct tps68470_pmic_opregion *opregion;
 	acpi_status status;
 
-	if (!dev || !tps68470_regmap) {
+	if (!tps68470_regmap)
-		dev_warn(dev, "dev or regmap is NULL\n");
+		return dev_err_probe(dev, -EINVAL, "regmap is missing\n");
-		return -EINVAL;
-	}
 
 	if (!handle) {
 		dev_warn(dev, "acpi handle is NULL\n");

drivers/ata/sata_sil.c

@@ -144,7 +144,7 @@ static const struct pci_device_id sil_pci_tbl[] = {
 static const struct sil_drivelist {
 	const char *product;
 	unsigned int quirk;
-} sil_blacklist [] = {
+} sil_quirks[] = {
 	{ "ST320012AS",		SIL_QUIRK_MOD15WRITE },
 	{ "ST330013AS",		SIL_QUIRK_MOD15WRITE },
 	{ "ST340017AS",		SIL_QUIRK_MOD15WRITE },
@@ -617,8 +617,8 @@ static void sil_thaw(struct ata_port *ap)
  *	list, and apply the fixups to only the specific
  *	devices/hosts/firmwares that need it.
  *
- *	20040111 - Seagate drives affected by the Mod15Write bug are blacklisted
+ *	20040111 - Seagate drives affected by the Mod15Write bug are quirked
- *	The Maxtor quirk is in the blacklist, but I'm keeping the original
+ *	The Maxtor quirk is in sil_quirks, but I'm keeping the original
  *	pessimistic fix for the following reasons...
  *	- There seems to be less info on it, only one device gleaned off the
  *	Windows	driver, maybe only one is affected.  More info would be greatly
@@ -637,9 +637,9 @@ static void sil_dev_config(struct ata_device *dev)
 
 	ata_id_c_string(dev->id, model_num, ATA_ID_PROD, sizeof(model_num));
 
-	for (n = 0; sil_blacklist[n].product; n++)
+	for (n = 0; sil_quirks[n].product; n++)
-		if (!strcmp(sil_blacklist[n].product, model_num)) {
+		if (!strcmp(sil_quirks[n].product, model_num)) {
-			quirks = sil_blacklist[n].quirk;
+			quirks = sil_quirks[n].quirk;
 			break;
 		}
 

drivers/base/bus.c

@@ -103,7 +103,8 @@ static ssize_t bus_attr_show(struct kobject *kobj, struct attribute *attr,
 {
 	struct bus_attribute *bus_attr = to_bus_attr(attr);
 	struct subsys_private *subsys_priv = to_subsys_private(kobj);
-	ssize_t ret = 0;
+	/* return -EIO for reading a bus attribute without show() */
+	ssize_t ret = -EIO;
 
 	if (bus_attr->show)
 		ret = bus_attr->show(subsys_priv->bus, buf);
@@ -115,7 +116,8 @@ static ssize_t bus_attr_store(struct kobject *kobj, struct attribute *attr,
 {
 	struct bus_attribute *bus_attr = to_bus_attr(attr);
 	struct subsys_private *subsys_priv = to_subsys_private(kobj);
-	ssize_t ret = 0;
+	/* return -EIO for writing a bus attribute without store() */
+	ssize_t ret = -EIO;
 
 	if (bus_attr->store)
 		ret = bus_attr->store(subsys_priv->bus, buf, count);

drivers/base/core.c

@@ -24,7 +24,6 @@
 #include <linux/mutex.h>
 #include <linux/pm_runtime.h>
 #include <linux/netdevice.h>
-#include <linux/rcupdate.h>
 #include <linux/sched/signal.h>
 #include <linux/sysfs.h>
 
@@ -1586,7 +1585,6 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj,
 		      struct kobj_uevent_env *env)
 {
 	struct device *dev = kobj_to_dev(kobj);
-	struct device_driver *driver;
 	int retval = 0;
 
 	/* add device node properties if present */
@@ -1615,12 +1613,8 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj,
 	if (dev->type && dev->type->name)
 		add_uevent_var(env, "DEVTYPE=%s", dev->type->name);
 
-	/* Synchronize with module_remove_driver() */
+	if (dev->driver)
-	rcu_read_lock();
+		add_uevent_var(env, "DRIVER=%s", dev->driver->name);
-	driver = READ_ONCE(dev->driver);
-	if (driver)
-		add_uevent_var(env, "DRIVER=%s", driver->name);
-	rcu_read_unlock();
 
 	/* Add common DT information about the device */
 	of_device_uevent(dev, env);
@@ -1690,8 +1684,11 @@ static ssize_t uevent_show(struct device *dev, struct device_attribute *attr,
 	if (!env)
 		return -ENOMEM;
 
+	/* Synchronize with really_probe() */
+	device_lock(dev);
 	/* let the kset specific function add its keys */
 	retval = kset->uevent_ops->uevent(kset, &dev->kobj, env);
+	device_unlock(dev);
 	if (retval)
 		goto out;
 

drivers/base/firmware_loader/main.c

@@ -570,6 +570,26 @@ static void fw_abort_batch_reqs(struct firmware *fw)
 	mutex_unlock(&fw_lock);
 }
 
+/*
+ * Reject firmware file names with ".." path components.
+ * There are drivers that construct firmware file names from device-supplied
+ * strings, and we don't want some device to be able to tell us "I would like to
+ * be sent my firmware from ../../../etc/shadow, please".
+ *
+ * Search for ".." surrounded by either '/' or start/end of string.
+ *
+ * This intentionally only looks at the firmware name, not at the firmware base
+ * directory or at symlink contents.
+ */
+static bool name_contains_dotdot(const char *name)
+{
+	size_t name_len = strlen(name);
+
+	return strcmp(name, "..") == 0 || strncmp(name, "../", 3) == 0 ||
+	       strstr(name, "/../") != NULL ||
+	       (name_len >= 3 && strcmp(name+name_len-3, "/..") == 0);
+}
+
 /* called from request_firmware() and request_firmware_work_func() */
 static int
 _request_firmware(const struct firmware **firmware_p, const char *name,
@@ -587,6 +607,14 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
 		goto out;
 	}
 
+	if (name_contains_dotdot(name)) {
+		dev_warn(device,
+			 "Firmware load for '%s' refused, path contains '..' component\n",
+			 name);
+		ret = -EINVAL;
+		goto out;
+	}
+
 	ret = _request_firmware_prepare(&fw, name, device, buf, size,
 					opt_flags);
 	if (ret <= 0) /* error or already assigned */
@@ -627,6 +655,8 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
  *      @name will be used as $FIRMWARE in the uevent environment and
  *      should be distinctive enough not to be confused with any other
  *      firmware image for this or any other device.
+ *	It must not contain any ".." path components - "foo/bar..bin" is
+ *	allowed, but "foo/../bar.bin" is not.
  *
  *	Caller must hold the reference count of @device.
  *

drivers/base/module.c

@@ -7,7 +7,6 @@
 #include <linux/errno.h>
 #include <linux/slab.h>
 #include <linux/string.h>
-#include <linux/rcupdate.h>
 #include "base.h"
 
 static char *make_driver_name(struct device_driver *drv)
@@ -78,9 +77,6 @@ void module_remove_driver(struct device_driver *drv)
 	if (!drv)
 		return;
 
-	/* Synchronize with dev_uevent() */
-	synchronize_rcu();
-
 	sysfs_remove_link(&drv->p->kobj, "module");
 
 	if (drv->owner)

drivers/block/aoe/aoecmd.c

@@ -362,6 +362,7 @@ ata_rw_frameinit(struct frame *f)
 	}
 
 	ah->cmdstat = ATA_CMD_PIO_READ | writebit | extbit;
+	dev_hold(t->ifp->nd);
 	skb->dev = t->ifp->nd;
 }
 
@@ -402,6 +403,8 @@ aoecmd_ata_rw(struct aoedev *d)
 		__skb_queue_head_init(&queue);
 		__skb_queue_tail(&queue, skb);
 		aoenet_xmit(&queue);
+	} else {
+		dev_put(f->t->ifp->nd);
 	}
 	return 1;
 }
@@ -484,10 +487,13 @@ resend(struct aoedev *d, struct frame *f)
 	memcpy(h->dst, t->addr, sizeof h->dst);
 	memcpy(h->src, t->ifp->nd->dev_addr, sizeof h->src);
 
+	dev_hold(t->ifp->nd);
 	skb->dev = t->ifp->nd;
 	skb = skb_clone(skb, GFP_ATOMIC);
-	if (skb == NULL)
+	if (skb == NULL) {
+		dev_put(t->ifp->nd);
 		return;
+	}
 	f->sent = ktime_get();
 	__skb_queue_head_init(&queue);
 	__skb_queue_tail(&queue, skb);
@@ -618,6 +624,8 @@ probe(struct aoetgt *t)
 		__skb_queue_head_init(&queue);
 		__skb_queue_tail(&queue, skb);
 		aoenet_xmit(&queue);
+	} else {
+		dev_put(f->t->ifp->nd);
 	}
 }
 
@@ -1407,6 +1415,7 @@ aoecmd_ata_id(struct aoedev *d)
 	ah->cmdstat = ATA_CMD_ID_ATA;
 	ah->lba3 = 0xa0;
 
+	dev_hold(t->ifp->nd);
 	skb->dev = t->ifp->nd;
 
 	d->rttavg = RTTAVG_INIT;
@@ -1416,6 +1425,8 @@ aoecmd_ata_id(struct aoedev *d)
 	skb = skb_clone(skb, GFP_ATOMIC);
 	if (skb)
 		f->sent = ktime_get();
+	else
+		dev_put(t->ifp->nd);
 
 	return skb;
 }

drivers/block/drbd/drbd_main.c

@@ -3499,10 +3499,12 @@ void drbd_uuid_new_current(struct drbd_device *device) __must_hold(local)
 void drbd_uuid_set_bm(struct drbd_device *device, u64 val) __must_hold(local)
 {
 	unsigned long flags;
-	if (device->ldev->md.uuid[UI_BITMAP] == 0 && val == 0)
-		return;
-
 	spin_lock_irqsave(&device->ldev->md.uuid_lock, flags);
+	if (device->ldev->md.uuid[UI_BITMAP] == 0 && val == 0) {
+		spin_unlock_irqrestore(&device->ldev->md.uuid_lock, flags);
+		return;
+	}
+
 	if (val == 0) {
 		drbd_uuid_move_history(device);
 		device->ldev->md.uuid[UI_HISTORY_START] = device->ldev->md.uuid[UI_BITMAP];

drivers/block/drbd/drbd_state.c

@@ -888,7 +888,7 @@ is_valid_state(struct drbd_device *device, union drbd_state ns)
 		  ns.disk == D_OUTDATED)
 		rv = SS_CONNECTED_OUTDATES;
 
-	else if ((ns.conn == C_VERIFY_S || ns.conn == C_VERIFY_T) &&
+	else if (nc && (ns.conn == C_VERIFY_S || ns.conn == C_VERIFY_T) &&
 		 (nc->verify_alg[0] == 0))
 		rv = SS_NO_VERIFY_ALG;
 

drivers/bluetooth/btusb.c

@@ -743,7 +743,15 @@ static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 	if (!urb)
 		return -ENOMEM;
 
-	size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
+	if (le16_to_cpu(data->udev->descriptor.idVendor)  == 0x0a12 &&
+	    le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001)
+		/* Fake CSR devices don't seem to support sort-transter */
+		size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
+	else
+		/* Use maximum HCI Event size so the USB stack handles
+		 * ZPL/short-transfer automatically.
+		 */
+		size = HCI_MAX_EVENT_SIZE;
 
 	buf = kmalloc(size, mem_flags);
 	if (!buf) {

drivers/char/virtio_console.c

@@ -2075,25 +2075,27 @@ static int virtcons_probe(struct virtio_device *vdev)
 		multiport = true;
 	}
 
-	err = init_vqs(portdev);
-	if (err < 0) {
-		dev_err(&vdev->dev, "Error %d initializing vqs\n", err);
-		goto free_chrdev;
-	}
-
 	spin_lock_init(&portdev->ports_lock);
 	INIT_LIST_HEAD(&portdev->ports);
 	INIT_LIST_HEAD(&portdev->list);
 
-	virtio_device_ready(portdev->vdev);
-
 	INIT_WORK(&portdev->config_work, &config_work_handler);
 	INIT_WORK(&portdev->control_work, &control_work_handler);
 
 	if (multiport) {
 		spin_lock_init(&portdev->c_ivq_lock);
 		spin_lock_init(&portdev->c_ovq_lock);
+	}
 
+	err = init_vqs(portdev);
+	if (err < 0) {
+		dev_err(&vdev->dev, "Error %d initializing vqs\n", err);
+		goto free_chrdev;
+	}
+
+	virtio_device_ready(portdev->vdev);
+
+	if (multiport) {
 		err = fill_queue(portdev->c_ivq, &portdev->c_ivq_lock);
 		if (err < 0) {
 			dev_err(&vdev->dev,

drivers/clk/bcm/clk-bcm53573-ilp.c

@@ -115,7 +115,7 @@ static void bcm53573_ilp_init(struct device_node *np)
 		goto err_free_ilp;
 	}
 
-	ilp->regmap = syscon_node_to_regmap(of_get_parent(np));
+	ilp->regmap = syscon_node_to_regmap(np->parent);
 	if (IS_ERR(ilp->regmap)) {
 		err = PTR_ERR(ilp->regmap);
 		goto err_free_ilp;

drivers/clk/clk-devres.c

@@ -9,31 +9,101 @@
 #include <linux/export.h>
 #include <linux/gfp.h>
 
+struct devm_clk_state {
+	struct clk *clk;
+	void (*exit)(struct clk *clk);
+};
+
 static void devm_clk_release(struct device *dev, void *res)
 {
-	clk_put(*(struct clk **)res);
+	struct devm_clk_state *state = res;
+
+	if (state->exit)
+		state->exit(state->clk);
+
+	clk_put(state->clk);
+}
+
+static struct clk *__devm_clk_get(struct device *dev, const char *id,
+				  struct clk *(*get)(struct device *dev, const char *id),
+				  int (*init)(struct clk *clk),
+				  void (*exit)(struct clk *clk))
+{
+	struct devm_clk_state *state;
+	struct clk *clk;
+	int ret;
+
+	state = devres_alloc(devm_clk_release, sizeof(*state), GFP_KERNEL);
+	if (!state)
+		return ERR_PTR(-ENOMEM);
+
+	clk = get(dev, id);
+	if (IS_ERR(clk)) {
+		ret = PTR_ERR(clk);
+		goto err_clk_get;
+	}
+
+	if (init) {
+		ret = init(clk);
+		if (ret)
+			goto err_clk_init;
+	}
+
+	state->clk = clk;
+	state->exit = exit;
+
+	devres_add(dev, state);
+
+	return clk;
+
+err_clk_init:
+
+	clk_put(clk);
+err_clk_get:
+
+	devres_free(state);
+	return ERR_PTR(ret);
 }
 
 struct clk *devm_clk_get(struct device *dev, const char *id)
 {
-	struct clk **ptr, *clk;
+	return __devm_clk_get(dev, id, clk_get, NULL, NULL);
-
-	ptr = devres_alloc(devm_clk_release, sizeof(*ptr), GFP_KERNEL);
-	if (!ptr)
-		return ERR_PTR(-ENOMEM);
-
-	clk = clk_get(dev, id);
-	if (!IS_ERR(clk)) {
-		*ptr = clk;
-		devres_add(dev, ptr);
-	} else {
-		devres_free(ptr);
-	}
-
-	return clk;
 }
 EXPORT_SYMBOL(devm_clk_get);
 
+struct clk *devm_clk_get_prepared(struct device *dev, const char *id)
+{
+	return __devm_clk_get(dev, id, clk_get, clk_prepare, clk_unprepare);
+}
+EXPORT_SYMBOL_GPL(devm_clk_get_prepared);
+
+struct clk *devm_clk_get_enabled(struct device *dev, const char *id)
+{
+	return __devm_clk_get(dev, id, clk_get,
+			      clk_prepare_enable, clk_disable_unprepare);
+}
+EXPORT_SYMBOL_GPL(devm_clk_get_enabled);
+
+struct clk *devm_clk_get_optional(struct device *dev, const char *id)
+{
+	return __devm_clk_get(dev, id, clk_get_optional, NULL, NULL);
+}
+EXPORT_SYMBOL(devm_clk_get_optional);
+
+struct clk *devm_clk_get_optional_prepared(struct device *dev, const char *id)
+{
+	return __devm_clk_get(dev, id, clk_get_optional,
+			      clk_prepare, clk_unprepare);
+}
+EXPORT_SYMBOL_GPL(devm_clk_get_optional_prepared);
+
+struct clk *devm_clk_get_optional_enabled(struct device *dev, const char *id)
+{
+	return __devm_clk_get(dev, id, clk_get_optional,
+			      clk_prepare_enable, clk_disable_unprepare);
+}
+EXPORT_SYMBOL_GPL(devm_clk_get_optional_enabled);
+
 struct clk_bulk_devres {
 	struct clk_bulk_data *clks;
 	int num_clks;
@@ -93,18 +163,19 @@ EXPORT_SYMBOL(devm_clk_put);
 struct clk *devm_get_clk_from_child(struct device *dev,
 				    struct device_node *np, const char *con_id)
 {
-	struct clk **ptr, *clk;
+	struct devm_clk_state *state;
+	struct clk *clk;
 
-	ptr = devres_alloc(devm_clk_release, sizeof(*ptr), GFP_KERNEL);
+	state = devres_alloc(devm_clk_release, sizeof(*state), GFP_KERNEL);
-	if (!ptr)
+	if (!state)
 		return ERR_PTR(-ENOMEM);
 
 	clk = of_clk_get_by_name(np, con_id);
 	if (!IS_ERR(clk)) {
-		*ptr = clk;
+		state->clk = clk;
-		devres_add(dev, ptr);
+		devres_add(dev, state);
 	} else {
-		devres_free(ptr);
+		devres_free(state);
 	}
 
 	return clk;

drivers/clk/rockchip/clk-rk3228.c

@@ -415,7 +415,7 @@ static struct rockchip_clk_branch rk3228_clk_branches[] __initdata = {
 			RK2928_CLKSEL_CON(29), 0, 3, DFLAGS),
 	DIV(0, "sclk_vop_pre", "sclk_vop_src", 0,
 			RK2928_CLKSEL_CON(27), 8, 8, DFLAGS),
-	MUX(DCLK_VOP, "dclk_vop", mux_dclk_vop_p, 0,
+	MUX(DCLK_VOP, "dclk_vop", mux_dclk_vop_p, CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT,
 			RK2928_CLKSEL_CON(27), 1, 1, MFLAGS),
 
 	FACTOR(0, "xin12m", "xin24m", 0, 1, 2),

drivers/clk/rockchip/clk.c

@@ -444,12 +444,13 @@ void __init rockchip_clk_register_branches(
 				      struct rockchip_clk_branch *list,
 				      unsigned int nr_clk)
 {
-	struct clk *clk = NULL;
+	struct clk *clk;
 	unsigned int idx;
 	unsigned long flags;
 
 	for (idx = 0; idx < nr_clk; idx++, list++) {
 		flags = list->flags;
+		clk = NULL;
 
 		/* catch simple muxes */
 		switch (list->branch_type) {

drivers/clk/ti/clk-dra7-atl.c

@@ -257,6 +257,7 @@ static int of_dra7_atl_clk_probe(struct platform_device *pdev)
 		}
 
 		clk = of_clk_get_from_provider(&clkspec);
+		of_node_put(clkspec.np);
 		if (IS_ERR(clk)) {
 			pr_err("%s: failed to get atl clock %d from provider\n",
 			       __func__, i);

drivers/clocksource/timer-qcom.c

@@ -242,6 +242,7 @@ static int __init msm_dt_timer_init(struct device_node *np)
 	}
 
 	if (of_property_read_u32(np, "clock-frequency", &freq)) {
+		iounmap(cpu0_base);
 		pr_err("Unknown frequency\n");
 		return -EINVAL;
 	}
@@ -252,7 +253,11 @@ static int __init msm_dt_timer_init(struct device_node *np)
 	freq /= 4;
 	writel_relaxed(DGT_CLK_CTL_DIV_4, source_base + DGT_CLK_CTL);
 
-	return msm_timer_init(freq, 32, irq, !!percpu_offset);
+	ret = msm_timer_init(freq, 32, irq, !!percpu_offset);
+	if (ret)
+		iounmap(cpu0_base);
+
+	return ret;
 }
 TIMER_OF_DECLARE(kpss_timer, "qcom,kpss-timer", msm_dt_timer_init);
 TIMER_OF_DECLARE(scss_timer, "qcom,scss-timer", msm_dt_timer_init);

drivers/firmware/arm_sdei.c

@@ -800,7 +800,7 @@ static int sdei_device_freeze(struct device *dev)
 	int err;
 
 	/* unregister private events */
-	cpuhp_remove_state(sdei_entry_point);
+	cpuhp_remove_state(sdei_hp_state);
 
 	err = sdei_unregister_shared();
 	if (err)

drivers/gpio/gpio-aspeed.c

@@ -407,6 +407,8 @@ static void __aspeed_gpio_set(struct gpio_chip *gc, unsigned int offset,
 	gpio->dcache[GPIO_BANK(offset)] = reg;
 
 	iowrite32(reg, addr);
+	/* Flush write */
+	ioread32(addr);
 }
 
 static void aspeed_gpio_set(struct gpio_chip *gc, unsigned int offset,
@@ -1174,7 +1176,7 @@ static int __init aspeed_gpio_probe(struct platform_device *pdev)
 	if (!gpio_id)
 		return -EINVAL;
 
-	gpio->clk = of_clk_get(pdev->dev.of_node, 0);
+	gpio->clk = devm_clk_get_enabled(&pdev->dev, NULL);
 	if (IS_ERR(gpio->clk)) {
 		dev_warn(&pdev->dev,
 				"Failed to get clock from devicetree, debouncing disabled\n");

drivers/gpio/gpio-davinci.c

@@ -294,7 +294,7 @@ static int davinci_gpio_probe(struct platform_device *pdev)
  * serve as EDMA event triggers.
  */
 
-static void gpio_irq_disable(struct irq_data *d)
+static void gpio_irq_mask(struct irq_data *d)
 {
 	struct davinci_gpio_regs __iomem *g = irq2regs(d);
 	u32 mask = (u32) irq_data_get_irq_handler_data(d);
@@ -303,7 +303,7 @@ static void gpio_irq_disable(struct irq_data *d)
 	writel_relaxed(mask, &g->clr_rising);
 }
 
-static void gpio_irq_enable(struct irq_data *d)
+static void gpio_irq_unmask(struct irq_data *d)
 {
 	struct davinci_gpio_regs __iomem *g = irq2regs(d);
 	u32 mask = (u32) irq_data_get_irq_handler_data(d);
@@ -329,8 +329,8 @@ static int gpio_irq_type(struct irq_data *d, unsigned trigger)
 
 static struct irq_chip gpio_irqchip = {
 	.name		= "GPIO",
-	.irq_enable	= gpio_irq_enable,
+	.irq_unmask	= gpio_irq_unmask,
-	.irq_disable	= gpio_irq_disable,
+	.irq_mask	= gpio_irq_mask,
 	.irq_set_type	= gpio_irq_type,
 	.flags		= IRQCHIP_SET_TYPE_MASKED | IRQCHIP_SKIP_SET_WAKE,
 };

drivers/gpio/gpiolib.c

@@ -3,6 +3,7 @@
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
+#include <linux/nospec.h>
 #include <linux/spinlock.h>
 #include <linux/list.h>
 #include <linux/device.h>
@@ -144,7 +145,7 @@ struct gpio_desc *gpiochip_get_desc(struct gpio_chip *chip,
 	if (hwnum >= gdev->ngpio)
 		return ERR_PTR(-EINVAL);
 
-	return &gdev->descs[hwnum];
+	return &gdev->descs[array_index_nospec(hwnum, gdev->ngpio)];
 }
 
 /**

drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c

@@ -90,6 +90,7 @@ static union acpi_object *amdgpu_atif_call(struct amdgpu_atif *atif,
 					   struct acpi_buffer *params)
 {
 	acpi_status status;
+	union acpi_object *obj;
 	union acpi_object atif_arg_elements[2];
 	struct acpi_object_list atif_arg;
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -112,16 +113,24 @@ static union acpi_object *amdgpu_atif_call(struct amdgpu_atif *atif,
 
 	status = acpi_evaluate_object(atif->handle, NULL, &atif_arg,
 				      &buffer);
+	obj = (union acpi_object *)buffer.pointer;
 
-	/* Fail only if calling the method fails and ATIF is supported */
+	/* Fail if calling the method fails */
-	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+	if (ACPI_FAILURE(status)) {
 		DRM_DEBUG_DRIVER("failed to evaluate ATIF got %s\n",
 				 acpi_format_exception(status));
-		kfree(buffer.pointer);
+		kfree(obj);
 		return NULL;
 	}
 
-	return buffer.pointer;
+	if (obj->type != ACPI_TYPE_BUFFER) {
+		DRM_DEBUG_DRIVER("bad object returned from ATIF: %d\n",
+				 obj->type);
+		kfree(obj);
+		return NULL;
+	}
+
+	return obj;
 }
 
 /**

drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c

@@ -394,7 +394,7 @@ static ssize_t amdgpu_debugfs_regs_smc_read(struct file *f, char __user *buf,
 	if (!adev->smc_rreg)
 		return -EOPNOTSUPP;
 
-	if (size & 0x3 || *pos & 0x3)
+	if (size > 4096 || size & 0x3 || *pos & 0x3)
 		return -EINVAL;
 
 	while (size) {

drivers/gpu/drm/amd/amdgpu/atombios_encoders.c

@@ -2095,23 +2095,29 @@ amdgpu_atombios_encoder_get_lcd_info(struct amdgpu_encoder *encoder)
 					fake_edid_record = (ATOM_FAKE_EDID_PATCH_RECORD *)record;
 					if (fake_edid_record->ucFakeEDIDLength) {
 						struct edid *edid;
-						int edid_size =
+						int edid_size;
-							max((int)EDID_LENGTH, (int)fake_edid_record->ucFakeEDIDLength);
-						edid = kmalloc(edid_size, GFP_KERNEL);
-						if (edid) {
-							memcpy((u8 *)edid, (u8 *)&fake_edid_record->ucFakeEDIDString[0],
-							       fake_edid_record->ucFakeEDIDLength);
 
+						if (fake_edid_record->ucFakeEDIDLength == 128)
+							edid_size = fake_edid_record->ucFakeEDIDLength;
+						else
+							edid_size = fake_edid_record->ucFakeEDIDLength * 128;
+						edid = kmemdup(&fake_edid_record->ucFakeEDIDString[0],
+							       edid_size, GFP_KERNEL);
+						if (edid) {
 							if (drm_edid_is_valid(edid)) {
 								adev->mode_info.bios_hardcoded_edid = edid;
 								adev->mode_info.bios_hardcoded_edid_size = edid_size;
-							} else
+							} else {
 								kfree(edid);
+							}
 						}
+						record += struct_size(fake_edid_record,
+								      ucFakeEDIDString,
+								      edid_size);
+					} else {
+						/* empty fake edid record must be 3 bytes long */
+						record += sizeof(ATOM_FAKE_EDID_PATCH_RECORD) + 1;
 					}
-					record += fake_edid_record->ucFakeEDIDLength ?
-						fake_edid_record->ucFakeEDIDLength + 2 :
-						sizeof(ATOM_FAKE_EDID_PATCH_RECORD);
 					break;
 				case LCD_PANEL_RESOLUTION_RECORD_TYPE:
 					panel_res_record = (ATOM_PANEL_RESOLUTION_PATCH_RECORD *)record;

drivers/gpu/drm/amd/display/dc/core/dc_resource.c

@@ -1569,6 +1569,8 @@ static bool are_stream_backends_same(
 bool dc_is_stream_unchanged(
 	struct dc_stream_state *old_stream, struct dc_stream_state *stream)
 {
+	if (!old_stream || !stream)
+		return false;
 
 	if (!are_stream_backends_same(old_stream, stream))
 		return false;

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c

@@ -482,6 +482,8 @@ bool cm_helper_translate_curve_to_degamma_hw_format(
 				i += increment) {
 			if (j == hw_points - 1)
 				break;
+			if (i >= TRANSFER_FUNC_POINTS)
+				return false;
 			rgb_resulted[j].red = output_tf->tf_pts.red[i];
 			rgb_resulted[j].green = output_tf->tf_pts.green[i];
 			rgb_resulted[j].blue = output_tf->tf_pts.blue[i];

drivers/gpu/drm/amd/include/atombios.h

@@ -4106,8 +4106,8 @@ typedef struct  _ATOM_LCD_MODE_CONTROL_CAP
 typedef struct _ATOM_FAKE_EDID_PATCH_RECORD
 {
   UCHAR ucRecordType;
-  UCHAR ucFakeEDIDLength;       // = 128 means EDID lenght is 128 bytes, otherwise the EDID length = ucFakeEDIDLength*128
+  UCHAR ucFakeEDIDLength;       // = 128 means EDID length is 128 bytes, otherwise the EDID length = ucFakeEDIDLength*128
-  UCHAR ucFakeEDIDString[1];    // This actually has ucFakeEdidLength elements.
+  UCHAR ucFakeEDIDString[];     // This actually has ucFakeEdidLength elements.
 } ATOM_FAKE_EDID_PATCH_RECORD;
 
 typedef struct  _ATOM_PANEL_RESOLUTION_PATCH_RECORD

drivers/gpu/drm/drm_crtc.c

@@ -567,9 +567,9 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
 	struct drm_mode_crtc *crtc_req = data;
 	struct drm_crtc *crtc;
 	struct drm_plane *plane;
-	struct drm_connector **connector_set, *connector;
+	struct drm_connector **connector_set = NULL, *connector;
-	struct drm_framebuffer *fb;
+	struct drm_framebuffer *fb = NULL;
-	struct drm_display_mode *mode;
+	struct drm_display_mode *mode = NULL;
 	struct drm_mode_set set;
 	uint32_t __user *set_connectors_ptr;
 	struct drm_modeset_acquire_ctx ctx;
@@ -601,10 +601,6 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
 	mutex_lock(&crtc->dev->mode_config.mutex);
 	drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE);
 retry:
-	connector_set = NULL;
-	fb = NULL;
-	mode = NULL;
-
 	ret = drm_modeset_lock_all_ctx(crtc->dev, &ctx);
 	if (ret)
 		goto out;
@@ -767,6 +763,13 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
 	}
 	kfree(connector_set);
 	drm_mode_destroy(dev, mode);
+
+	/* In case we need to retry... */
+	connector_set = NULL;
+	fb = NULL;
+	mode = NULL;
+	num_connectors = 0;
+
 	if (ret == -EDEADLK) {
 		ret = drm_modeset_backoff(&ctx);
 		if (!ret)

drivers/gpu/drm/drm_print.c

@@ -54,8 +54,9 @@ void __drm_puts_coredump(struct drm_printer *p, const char *str)
 			copy = iterator->remain;
 
 		/* Copy out the bit of the string that we need */
-		memcpy(iterator->data,
+		if (iterator->data)
-			str + (iterator->start - iterator->offset), copy);
+			memcpy(iterator->data,
+			       str + (iterator->start - iterator->offset), copy);
 
 		iterator->offset = iterator->start + copy;
 		iterator->remain -= copy;
@@ -64,7 +65,8 @@ void __drm_puts_coredump(struct drm_printer *p, const char *str)
 
 		len = min_t(ssize_t, strlen(str), iterator->remain);
 
-		memcpy(iterator->data + pos, str, len);
+		if (iterator->data)
+			memcpy(iterator->data + pos, str, len);
 
 		iterator->offset += len;
 		iterator->remain -= len;
@@ -94,8 +96,9 @@ void __drm_printfn_coredump(struct drm_printer *p, struct va_format *vaf)
 	if ((iterator->offset >= iterator->start) && (len < iterator->remain)) {
 		ssize_t pos = iterator->offset - iterator->start;
 
-		snprintf(((char *) iterator->data) + pos,
+		if (iterator->data)
-			iterator->remain, "%pV", vaf);
+			snprintf(((char *) iterator->data) + pos,
+				 iterator->remain, "%pV", vaf);
 
 		iterator->offset += len;
 		iterator->remain -= len;

drivers/gpu/drm/msm/adreno/a5xx_gpu.h

@@ -44,6 +44,7 @@ struct a5xx_gpu {
 	uint64_t preempt_iova[MSM_GPU_MAX_RINGS];
 
 	atomic_t preempt_state;
+	spinlock_t preempt_start_lock;
 	struct timer_list preempt_timer;
 };
 

drivers/gpu/drm/msm/adreno/a5xx_preempt.c

@@ -107,12 +107,19 @@ void a5xx_preempt_trigger(struct msm_gpu *gpu)
 	if (gpu->nr_rings == 1)
 		return;
 
+	/*
+	 * Serialize preemption start to ensure that we always make
+	 * decision on latest state. Otherwise we can get stuck in
+	 * lower priority or empty ring.
+	 */
+	spin_lock_irqsave(&a5xx_gpu->preempt_start_lock, flags);
+
 	/*
 	 * Try to start preemption by moving from NONE to START. If
 	 * unsuccessful, a preemption is already in flight
 	 */
 	if (!try_preempt_state(a5xx_gpu, PREEMPT_NONE, PREEMPT_START))
-		return;
+		goto out;
 
 	/* Get the next ring to preempt to */
 	ring = get_next_ring(gpu);
@@ -137,9 +144,11 @@ void a5xx_preempt_trigger(struct msm_gpu *gpu)
 		set_preempt_state(a5xx_gpu, PREEMPT_ABORT);
 		update_wptr(gpu, a5xx_gpu->cur_ring);
 		set_preempt_state(a5xx_gpu, PREEMPT_NONE);
-		return;
+		goto out;
 	}
 
+	spin_unlock_irqrestore(&a5xx_gpu->preempt_start_lock, flags);
+
 	/* Make sure the wptr doesn't update while we're in motion */
 	spin_lock_irqsave(&ring->lock, flags);
 	a5xx_gpu->preempt[ring->id]->wptr = get_wptr(ring);
@@ -163,6 +172,10 @@ void a5xx_preempt_trigger(struct msm_gpu *gpu)
 
 	/* And actually start the preemption */
 	gpu_write(gpu, REG_A5XX_CP_CONTEXT_SWITCH_CNTL, 1);
+	return;
+
+out:
+	spin_unlock_irqrestore(&a5xx_gpu->preempt_start_lock, flags);
 }
 
 void a5xx_preempt_irq(struct msm_gpu *gpu)
@@ -200,6 +213,12 @@ void a5xx_preempt_irq(struct msm_gpu *gpu)
 	update_wptr(gpu, a5xx_gpu->cur_ring);
 
 	set_preempt_state(a5xx_gpu, PREEMPT_NONE);
+
+	/*
+	 * Try to trigger preemption again in case there was a submit or
+	 * retire during ring switch
+	 */
+	a5xx_preempt_trigger(gpu);
 }
 
 void a5xx_preempt_hw_init(struct msm_gpu *gpu)
@@ -209,6 +228,8 @@ void a5xx_preempt_hw_init(struct msm_gpu *gpu)
 	int i;
 
 	for (i = 0; i < gpu->nr_rings; i++) {
+		a5xx_gpu->preempt[i]->data = 0;
+		a5xx_gpu->preempt[i]->info = 0;
 		a5xx_gpu->preempt[i]->wptr = 0;
 		a5xx_gpu->preempt[i]->rptr = 0;
 		a5xx_gpu->preempt[i]->rbase = gpu->rb[i]->iova;
@@ -300,5 +321,6 @@ void a5xx_preempt_init(struct msm_gpu *gpu)
 		}
 	}
 
+	spin_lock_init(&a5xx_gpu->preempt_start_lock);
 	timer_setup(&a5xx_gpu->preempt_timer, a5xx_preempt_timer, 0);
 }

drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c

@@ -366,7 +366,7 @@ void mdp5_smp_dump(struct mdp5_smp *smp, struct drm_printer *p)
 
 			drm_printf(p, "%s:%d\t%d\t%s\n",
 				pipe2name(pipe), j, inuse,
-				plane ? plane->name : NULL);
+				plane ? plane->name : "(null)");
 
 			total += inuse;
 		}

drivers/gpu/drm/msm/dsi/dsi_host.c

@@ -671,7 +671,7 @@ static u32 dsi_get_pclk_rate(struct msm_dsi_host *msm_host, bool is_dual_dsi)
 	struct drm_display_mode *mode = msm_host->mode;
 	u32 pclk_rate;
 
-	pclk_rate = mode->clock * 1000;
+	pclk_rate = mode->clock * 1000u;
 
 	/*
 	 * For dual DSI mode, the current DRM mode has the complete width of the

drivers/gpu/drm/radeon/atombios.h

@@ -3615,7 +3615,7 @@ typedef struct _ATOM_FAKE_EDID_PATCH_RECORD
 {
   UCHAR ucRecordType;
   UCHAR ucFakeEDIDLength;
-  UCHAR ucFakeEDIDString[1];    // This actually has ucFakeEdidLength elements.
+  UCHAR ucFakeEDIDString[];    // This actually has ucFakeEdidLength elements.
 } ATOM_FAKE_EDID_PATCH_RECORD;
 
 typedef struct  _ATOM_PANEL_RESOLUTION_PATCH_RECORD

drivers/gpu/drm/radeon/evergreen_cs.c

@@ -396,7 +396,7 @@ static int evergreen_cs_track_validate_cb(struct radeon_cs_parser *p, unsigned i
 	struct evergreen_cs_track *track = p->track;
 	struct eg_surface surf;
 	unsigned pitch, slice, mslice;
-	unsigned long offset;
+	u64 offset;
 	int r;
 
 	mslice = G_028C6C_SLICE_MAX(track->cb_color_view[id]) + 1;
@@ -434,14 +434,14 @@ static int evergreen_cs_track_validate_cb(struct radeon_cs_parser *p, unsigned i
 		return r;
 	}
 
-	offset = track->cb_color_bo_offset[id] << 8;
+	offset = (u64)track->cb_color_bo_offset[id] << 8;
 	if (offset & (surf.base_align - 1)) {
-		dev_warn(p->dev, "%s:%d cb[%d] bo base %ld not aligned with %ld\n",
+		dev_warn(p->dev, "%s:%d cb[%d] bo base %llu not aligned with %ld\n",
 			 __func__, __LINE__, id, offset, surf.base_align);
 		return -EINVAL;
 	}
 
-	offset += surf.layer_size * mslice;
+	offset += (u64)surf.layer_size * mslice;
 	if (offset > radeon_bo_size(track->cb_color_bo[id])) {
 		/* old ddx are broken they allocate bo with w*h*bpp but
 		 * program slice with ALIGN(h, 8), catch this and patch
@@ -449,14 +449,14 @@ static int evergreen_cs_track_validate_cb(struct radeon_cs_parser *p, unsigned i
 		 */
 		if (!surf.mode) {
 			uint32_t *ib = p->ib.ptr;
-			unsigned long tmp, nby, bsize, size, min = 0;
+			u64 tmp, nby, bsize, size, min = 0;
 
 			/* find the height the ddx wants */
 			if (surf.nby > 8) {
 				min = surf.nby - 8;
 			}
 			bsize = radeon_bo_size(track->cb_color_bo[id]);
-			tmp = track->cb_color_bo_offset[id] << 8;
+			tmp = (u64)track->cb_color_bo_offset[id] << 8;
 			for (nby = surf.nby; nby > min; nby--) {
 				size = nby * surf.nbx * surf.bpe * surf.nsamples;
 				if ((tmp + size * mslice) <= bsize) {
@@ -468,7 +468,7 @@ static int evergreen_cs_track_validate_cb(struct radeon_cs_parser *p, unsigned i
 				slice = ((nby * surf.nbx) / 64) - 1;
 				if (!evergreen_surface_check(p, &surf, "cb")) {
 					/* check if this one works */
-					tmp += surf.layer_size * mslice;
+					tmp += (u64)surf.layer_size * mslice;
 					if (tmp <= bsize) {
 						ib[track->cb_color_slice_idx[id]] = slice;
 						goto old_ddx_ok;
@@ -477,9 +477,9 @@ static int evergreen_cs_track_validate_cb(struct radeon_cs_parser *p, unsigned i
 			}
 		}
 		dev_warn(p->dev, "%s:%d cb[%d] bo too small (layer size %d, "
-			 "offset %d, max layer %d, bo size %ld, slice %d)\n",
+			 "offset %llu, max layer %d, bo size %ld, slice %d)\n",
 			 __func__, __LINE__, id, surf.layer_size,
-			track->cb_color_bo_offset[id] << 8, mslice,
+			(u64)track->cb_color_bo_offset[id] << 8, mslice,
 			radeon_bo_size(track->cb_color_bo[id]), slice);
 		dev_warn(p->dev, "%s:%d problematic surf: (%d %d) (%d %d %d %d %d %d %d)\n",
 			 __func__, __LINE__, surf.nbx, surf.nby,
@@ -563,7 +563,7 @@ static int evergreen_cs_track_validate_stencil(struct radeon_cs_parser *p)
 	struct evergreen_cs_track *track = p->track;
 	struct eg_surface surf;
 	unsigned pitch, slice, mslice;
-	unsigned long offset;
+	u64 offset;
 	int r;
 
 	mslice = G_028008_SLICE_MAX(track->db_depth_view) + 1;
@@ -609,18 +609,18 @@ static int evergreen_cs_track_validate_stencil(struct radeon_cs_parser *p)
 		return r;
 	}
 
-	offset = track->db_s_read_offset << 8;
+	offset = (u64)track->db_s_read_offset << 8;
 	if (offset & (surf.base_align - 1)) {
-		dev_warn(p->dev, "%s:%d stencil read bo base %ld not aligned with %ld\n",
+		dev_warn(p->dev, "%s:%d stencil read bo base %llu not aligned with %ld\n",
 			 __func__, __LINE__, offset, surf.base_align);
 		return -EINVAL;
 	}
-	offset += surf.layer_size * mslice;
+	offset += (u64)surf.layer_size * mslice;
 	if (offset > radeon_bo_size(track->db_s_read_bo)) {
 		dev_warn(p->dev, "%s:%d stencil read bo too small (layer size %d, "
-			 "offset %ld, max layer %d, bo size %ld)\n",
+			 "offset %llu, max layer %d, bo size %ld)\n",
 			 __func__, __LINE__, surf.layer_size,
-			(unsigned long)track->db_s_read_offset << 8, mslice,
+			(u64)track->db_s_read_offset << 8, mslice,
 			radeon_bo_size(track->db_s_read_bo));
 		dev_warn(p->dev, "%s:%d stencil invalid (0x%08x 0x%08x 0x%08x 0x%08x)\n",
 			 __func__, __LINE__, track->db_depth_size,
@@ -628,18 +628,18 @@ static int evergreen_cs_track_validate_stencil(struct radeon_cs_parser *p)
 		return -EINVAL;
 	}
 
-	offset = track->db_s_write_offset << 8;
+	offset = (u64)track->db_s_write_offset << 8;
 	if (offset & (surf.base_align - 1)) {
-		dev_warn(p->dev, "%s:%d stencil write bo base %ld not aligned with %ld\n",
+		dev_warn(p->dev, "%s:%d stencil write bo base %llu not aligned with %ld\n",
 			 __func__, __LINE__, offset, surf.base_align);
 		return -EINVAL;
 	}
-	offset += surf.layer_size * mslice;
+	offset += (u64)surf.layer_size * mslice;
 	if (offset > radeon_bo_size(track->db_s_write_bo)) {
 		dev_warn(p->dev, "%s:%d stencil write bo too small (layer size %d, "
-			 "offset %ld, max layer %d, bo size %ld)\n",
+			 "offset %llu, max layer %d, bo size %ld)\n",
 			 __func__, __LINE__, surf.layer_size,
-			(unsigned long)track->db_s_write_offset << 8, mslice,
+			(u64)track->db_s_write_offset << 8, mslice,
 			radeon_bo_size(track->db_s_write_bo));
 		return -EINVAL;
 	}
@@ -660,7 +660,7 @@ static int evergreen_cs_track_validate_depth(struct radeon_cs_parser *p)
 	struct evergreen_cs_track *track = p->track;
 	struct eg_surface surf;
 	unsigned pitch, slice, mslice;
-	unsigned long offset;
+	u64 offset;
 	int r;
 
 	mslice = G_028008_SLICE_MAX(track->db_depth_view) + 1;
@@ -707,34 +707,34 @@ static int evergreen_cs_track_validate_depth(struct radeon_cs_parser *p)
 		return r;
 	}
 
-	offset = track->db_z_read_offset << 8;
+	offset = (u64)track->db_z_read_offset << 8;
 	if (offset & (surf.base_align - 1)) {
-		dev_warn(p->dev, "%s:%d stencil read bo base %ld not aligned with %ld\n",
+		dev_warn(p->dev, "%s:%d stencil read bo base %llu not aligned with %ld\n",
 			 __func__, __LINE__, offset, surf.base_align);
 		return -EINVAL;
 	}
-	offset += surf.layer_size * mslice;
+	offset += (u64)surf.layer_size * mslice;
 	if (offset > radeon_bo_size(track->db_z_read_bo)) {
 		dev_warn(p->dev, "%s:%d depth read bo too small (layer size %d, "
-			 "offset %ld, max layer %d, bo size %ld)\n",
+			 "offset %llu, max layer %d, bo size %ld)\n",
 			 __func__, __LINE__, surf.layer_size,
-			(unsigned long)track->db_z_read_offset << 8, mslice,
+			(u64)track->db_z_read_offset << 8, mslice,
 			radeon_bo_size(track->db_z_read_bo));
 		return -EINVAL;
 	}
 
-	offset = track->db_z_write_offset << 8;
+	offset = (u64)track->db_z_write_offset << 8;
 	if (offset & (surf.base_align - 1)) {
-		dev_warn(p->dev, "%s:%d stencil write bo base %ld not aligned with %ld\n",
+		dev_warn(p->dev, "%s:%d stencil write bo base %llu not aligned with %ld\n",
 			 __func__, __LINE__, offset, surf.base_align);
 		return -EINVAL;
 	}
-	offset += surf.layer_size * mslice;
+	offset += (u64)surf.layer_size * mslice;
 	if (offset > radeon_bo_size(track->db_z_write_bo)) {
 		dev_warn(p->dev, "%s:%d depth write bo too small (layer size %d, "
-			 "offset %ld, max layer %d, bo size %ld)\n",
+			 "offset %llu, max layer %d, bo size %ld)\n",
 			 __func__, __LINE__, surf.layer_size,
-			(unsigned long)track->db_z_write_offset << 8, mslice,
+			(u64)track->db_z_write_offset << 8, mslice,
 			radeon_bo_size(track->db_z_write_bo));
 		return -EINVAL;
 	}

drivers/gpu/drm/radeon/r100.c

@@ -999,45 +999,65 @@ static int r100_cp_init_microcode(struct radeon_device *rdev)
 
 	DRM_DEBUG_KMS("\n");
 
-	if ((rdev->family == CHIP_R100) || (rdev->family == CHIP_RV100) ||
+	switch (rdev->family) {
-	    (rdev->family == CHIP_RV200) || (rdev->family == CHIP_RS100) ||
+	case CHIP_R100:
-	    (rdev->family == CHIP_RS200)) {
+	case CHIP_RV100:
+	case CHIP_RV200:
+	case CHIP_RS100:
+	case CHIP_RS200:
 		DRM_INFO("Loading R100 Microcode\n");
 		fw_name = FIRMWARE_R100;
-	} else if ((rdev->family == CHIP_R200) ||
+		break;
-		   (rdev->family == CHIP_RV250) ||
+
-		   (rdev->family == CHIP_RV280) ||
+	case CHIP_R200:
-		   (rdev->family == CHIP_RS300)) {
+	case CHIP_RV250:
+	case CHIP_RV280:
+	case CHIP_RS300:
 		DRM_INFO("Loading R200 Microcode\n");
 		fw_name = FIRMWARE_R200;
-	} else if ((rdev->family == CHIP_R300) ||
+		break;
-		   (rdev->family == CHIP_R350) ||
+
-		   (rdev->family == CHIP_RV350) ||
+	case CHIP_R300:
-		   (rdev->family == CHIP_RV380) ||
+	case CHIP_R350:
-		   (rdev->family == CHIP_RS400) ||
+	case CHIP_RV350:
-		   (rdev->family == CHIP_RS480)) {
+	case CHIP_RV380:
+	case CHIP_RS400:
+	case CHIP_RS480:
 		DRM_INFO("Loading R300 Microcode\n");
 		fw_name = FIRMWARE_R300;
-	} else if ((rdev->family == CHIP_R420) ||
+		break;
-		   (rdev->family == CHIP_R423) ||
+
-		   (rdev->family == CHIP_RV410)) {
+	case CHIP_R420:
+	case CHIP_R423:
+	case CHIP_RV410:
 		DRM_INFO("Loading R400 Microcode\n");
 		fw_name = FIRMWARE_R420;
-	} else if ((rdev->family == CHIP_RS690) ||
+		break;
-		   (rdev->family == CHIP_RS740)) {
+
+	case CHIP_RS690:
+	case CHIP_RS740:
 		DRM_INFO("Loading RS690/RS740 Microcode\n");
 		fw_name = FIRMWARE_RS690;
-	} else if (rdev->family == CHIP_RS600) {
+		break;
+
+	case CHIP_RS600:
 		DRM_INFO("Loading RS600 Microcode\n");
 		fw_name = FIRMWARE_RS600;
-	} else if ((rdev->family == CHIP_RV515) ||
+		break;
-		   (rdev->family == CHIP_R520) ||
+
-		   (rdev->family == CHIP_RV530) ||
+	case CHIP_RV515:
-		   (rdev->family == CHIP_R580) ||
+	case CHIP_R520:
-		   (rdev->family == CHIP_RV560) ||
+	case CHIP_RV530:
-		   (rdev->family == CHIP_RV570)) {
+	case CHIP_R580:
+	case CHIP_RV560:
+	case CHIP_RV570:
 		DRM_INFO("Loading R500 Microcode\n");
 		fw_name = FIRMWARE_R520;
+		break;
+
+	default:
+		DRM_ERROR("Unsupported Radeon family %u\n", rdev->family);
+		return -EINVAL;
 	}
 
 	err = request_firmware(&rdev->me_fw, fw_name, rdev->dev);

drivers/gpu/drm/radeon/radeon_atombios.c

@@ -1727,23 +1727,29 @@ struct radeon_encoder_atom_dig *radeon_atombios_get_lvds_info(struct
 					fake_edid_record = (ATOM_FAKE_EDID_PATCH_RECORD *)record;
 					if (fake_edid_record->ucFakeEDIDLength) {
 						struct edid *edid;
-						int edid_size =
+						int edid_size;
-							max((int)EDID_LENGTH, (int)fake_edid_record->ucFakeEDIDLength);
-						edid = kmalloc(edid_size, GFP_KERNEL);
-						if (edid) {
-							memcpy((u8 *)edid, (u8 *)&fake_edid_record->ucFakeEDIDString[0],
-							       fake_edid_record->ucFakeEDIDLength);
 
+						if (fake_edid_record->ucFakeEDIDLength == 128)
+							edid_size = fake_edid_record->ucFakeEDIDLength;
+						else
+							edid_size = fake_edid_record->ucFakeEDIDLength * 128;
+						edid = kmemdup(&fake_edid_record->ucFakeEDIDString[0],
+							       edid_size, GFP_KERNEL);
+						if (edid) {
 							if (drm_edid_is_valid(edid)) {
 								rdev->mode_info.bios_hardcoded_edid = edid;
 								rdev->mode_info.bios_hardcoded_edid_size = edid_size;
-							} else
+							} else {
 								kfree(edid);
+							}
 						}
+						record += struct_size(fake_edid_record,
+								      ucFakeEDIDString,
+								      edid_size);
+					} else {
+						/* empty fake edid record must be 3 bytes long */
+						record += sizeof(ATOM_FAKE_EDID_PATCH_RECORD) + 1;
 					}
-					record += fake_edid_record->ucFakeEDIDLength ?
-						fake_edid_record->ucFakeEDIDLength + 2 :
-						sizeof(ATOM_FAKE_EDID_PATCH_RECORD);
 					break;
 				case LCD_PANEL_RESOLUTION_RECORD_TYPE:
 					panel_res_record = (ATOM_PANEL_RESOLUTION_PATCH_RECORD *)record;

drivers/gpu/drm/rockchip/rockchip_drm_vop.c

@@ -308,8 +308,8 @@ static void scl_vop_cal_scl_fac(struct vop *vop, const struct vop_win_data *win,
 	if (info->is_yuv)
 		is_yuv = true;
 
-	if (dst_w > 3840) {
+	if (dst_w > 4096) {
-		DRM_DEV_ERROR(vop->dev, "Maximum dst width (3840) exceeded\n");
+		DRM_DEV_ERROR(vop->dev, "Maximum dst width (4096) exceeded\n");
 		return;
 	}
 

drivers/gpu/drm/stm/drv.c

@@ -152,10 +152,12 @@ static int stm_drm_platform_probe(struct platform_device *pdev)
 
 	ret = drm_dev_register(ddev, 0);
 	if (ret)
-		goto err_put;
+		goto err_unload;
 
 	return 0;
 
+err_unload:
+	drv_unload(ddev);
 err_put:
 	drm_dev_put(ddev);
 

drivers/gpu/drm/vmwgfx/vmwgfx_kms.c

@@ -1468,6 +1468,7 @@ static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
 		DRM_ERROR("Surface size cannot exceed %dx%d",
 			dev_priv->texture_max_width,
 			dev_priv->texture_max_height);
+		ret = -EINVAL;
 		goto err_out;
 	}
 

drivers/hid/hid-core.c

@@ -1482,7 +1482,7 @@ u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags)
 
 	u32 len = hid_report_len(report) + 7;
 
-	return kmalloc(len, flags);
+	return kzalloc(len, flags);
 }
 EXPORT_SYMBOL_GPL(hid_alloc_report_buf);
 

drivers/hid/hid-ids.h

@@ -919,6 +919,8 @@
 #define USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3220_SERIES	0xc056
 #define USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3215_SERIES	0xc057
 #define USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3225_SERIES	0xc058
+#define USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3325_SERIES	0x430c
+#define USB_DEVICE_ID_PLANTRONICS_ENCOREPRO_500_SERIES		0x431e
 
 #define USB_VENDOR_ID_PANASONIC		0x04da
 #define USB_DEVICE_ID_PANABOARD_UBT780	0x1044

drivers/hid/hid-multitouch.c

@@ -1986,6 +1986,11 @@ static const struct hid_device_id mt_devices[] = {
 		HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
 			0x347d, 0x7853) },
 
+	/* HONOR MagicBook Art 14 touchpad */
+	{ .driver_data = MT_CLS_VTL,
+		HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
+			0x35cc, 0x0104) },
+
 	/* Ilitek dual touch panel */
 	{  .driver_data = MT_CLS_NSMU,
 		MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,

drivers/hid/hid-plantronics.c

@@ -41,8 +41,10 @@
 			    (usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER)
 
 #define PLT_QUIRK_DOUBLE_VOLUME_KEYS BIT(0)
+#define PLT_QUIRK_FOLLOWED_OPPOSITE_VOLUME_KEYS BIT(1)
 
 #define PLT_DOUBLE_KEY_TIMEOUT 5 /* ms */
+#define PLT_FOLLOWED_OPPOSITE_KEY_TIMEOUT 220 /* ms */
 
 struct plt_drv_data {
 	unsigned long device_type;
@@ -140,6 +142,21 @@ static int plantronics_event(struct hid_device *hdev, struct hid_field *field,
 
 		drv_data->last_volume_key_ts = cur_ts;
 	}
+	if (drv_data->quirks & PLT_QUIRK_FOLLOWED_OPPOSITE_VOLUME_KEYS) {
+		unsigned long prev_ts, cur_ts;
+
+		/* Usages are filtered in plantronics_usages. */
+
+		if (!value) /* Handle key presses only. */
+			return 0;
+
+		prev_ts = drv_data->last_volume_key_ts;
+		cur_ts = jiffies;
+		if (jiffies_to_msecs(cur_ts - prev_ts) <= PLT_FOLLOWED_OPPOSITE_KEY_TIMEOUT)
+			return 1; /* Ignore the followed opposite volume key. */
+
+		drv_data->last_volume_key_ts = cur_ts;
+	}
 
 	return 0;
 }
@@ -213,6 +230,12 @@ static const struct hid_device_id plantronics_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS,
 					 USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3225_SERIES),
 		.driver_data = PLT_QUIRK_DOUBLE_VOLUME_KEYS },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS,
+					 USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3325_SERIES),
+		.driver_data = PLT_QUIRK_FOLLOWED_OPPOSITE_VOLUME_KEYS },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS,
+					 USB_DEVICE_ID_PLANTRONICS_ENCOREPRO_500_SERIES),
+		.driver_data = PLT_QUIRK_FOLLOWED_OPPOSITE_VOLUME_KEYS },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS, HID_ANY_ID) },
 	{ }
 };

drivers/hwmon/max16065.c

@@ -117,9 +117,10 @@ static inline int LIMIT_TO_MV(int limit, int range)
 	return limit * range / 256;
 }
 
-static inline int MV_TO_LIMIT(int mv, int range)
+static inline int MV_TO_LIMIT(unsigned long mv, int range)
 {
-	return clamp_val(DIV_ROUND_CLOSEST(mv * 256, range), 0, 255);
+	mv = clamp_val(mv, 0, ULONG_MAX / 256);
+	return DIV_ROUND_CLOSEST(clamp_val(mv * 256, 0, range * 255), range);
 }
 
 static inline int ADC_TO_CURR(int adc, int gain)

drivers/hwmon/ntc_thermistor.c

@@ -57,6 +57,7 @@ static const struct platform_device_id ntc_thermistor_id[] = {
 	{ "ncp15xh103", TYPE_NCPXXXH103 },
 	{ },
 };
+MODULE_DEVICE_TABLE(platform, ntc_thermistor_id);
 
 /*
  * A compensation table should be sorted by the values of .ohm

drivers/hwtracing/coresight/coresight-tmc-etr.c

@@ -251,6 +251,7 @@ void tmc_free_sg_table(struct tmc_sg_table *sg_table)
 {
 	tmc_free_table_pages(sg_table);
 	tmc_free_data_pages(sg_table);
+	kfree(sg_table);
 }
 
 long tmc_sg_get_rwp_offset(struct tmc_drvdata *drvdata)
@@ -345,7 +346,6 @@ struct tmc_sg_table *tmc_alloc_sg_table(struct device *dev,
 		rc = tmc_alloc_table_pages(sg_table);
 	if (rc) {
 		tmc_free_sg_table(sg_table);
-		kfree(sg_table);
 		return ERR_PTR(rc);
 	}
 

drivers/i2c/busses/i2c-aspeed.c

@@ -159,6 +159,13 @@ struct aspeed_i2c_bus {
 
 static int aspeed_i2c_reset(struct aspeed_i2c_bus *bus);
 
+/* precondition: bus.lock has been acquired. */
+static void aspeed_i2c_do_stop(struct aspeed_i2c_bus *bus)
+{
+	bus->master_state = ASPEED_I2C_MASTER_STOP;
+	writel(ASPEED_I2CD_M_STOP_CMD, bus->base + ASPEED_I2C_CMD_REG);
+}
+
 static int aspeed_i2c_recover_bus(struct aspeed_i2c_bus *bus)
 {
 	unsigned long time_left, flags;
@@ -176,7 +183,7 @@ static int aspeed_i2c_recover_bus(struct aspeed_i2c_bus *bus)
 			command);
 
 		reinit_completion(&bus->cmd_complete);
-		writel(ASPEED_I2CD_M_STOP_CMD, bus->base + ASPEED_I2C_CMD_REG);
+		aspeed_i2c_do_stop(bus);
 		spin_unlock_irqrestore(&bus->lock, flags);
 
 		time_left = wait_for_completion_timeout(
@@ -350,13 +357,6 @@ static void aspeed_i2c_do_start(struct aspeed_i2c_bus *bus)
 	writel(command, bus->base + ASPEED_I2C_CMD_REG);
 }
 
-/* precondition: bus.lock has been acquired. */
-static void aspeed_i2c_do_stop(struct aspeed_i2c_bus *bus)
-{
-	bus->master_state = ASPEED_I2C_MASTER_STOP;
-	writel(ASPEED_I2CD_M_STOP_CMD, bus->base + ASPEED_I2C_CMD_REG);
-}
-
 /* precondition: bus.lock has been acquired. */
 static void aspeed_i2c_next_msg_or_stop(struct aspeed_i2c_bus *bus)
 {

drivers/i2c/busses/i2c-i801.c

@@ -1674,8 +1674,15 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
 
 	i801_add_tco(priv);
 
+	/*
+	 * adapter.name is used by platform code to find the main I801 adapter
+	 * to instantiante i2c_clients, do not change.
+	 */
 	snprintf(priv->adapter.name, sizeof(priv->adapter.name),
-		"SMBus I801 adapter at %04lx", priv->smba);
+		 "SMBus %s adapter at %04lx",
+		 (priv->features & FEATURE_IDF) ? "I801 IDF" : "I801",
+		 priv->smba);
+
 	err = i2c_add_adapter(&priv->adapter);
 	if (err) {
 		platform_device_unregister(priv->tco_pdev);

drivers/i2c/busses/i2c-isch.c

@@ -107,8 +107,7 @@ static int sch_transaction(void)
 	if (retries > MAX_RETRIES) {
 		dev_err(&sch_adapter.dev, "SMBus Timeout!\n");
 		result = -ETIMEDOUT;
-	}
+	} else if (temp & 0x04) {
-	if (temp & 0x04) {
 		result = -EIO;
 		dev_dbg(&sch_adapter.dev, "Bus collision! SMBus may be "
 			"locked until next hard reset. (sorry!)\n");

drivers/i2c/busses/i2c-xiic.c

@@ -478,14 +478,17 @@ static irqreturn_t xiic_process(int irq, void *dev_id)
 			goto out;
 		}
 
-		xiic_fill_tx_fifo(i2c);
+		if (xiic_tx_space(i2c)) {
-
+			xiic_fill_tx_fifo(i2c);
-		/* current message sent and there is space in the fifo */
+		} else {
-		if (!xiic_tx_space(i2c) && xiic_tx_fifo_space(i2c) >= 2) {
+			/* current message fully written */
 			dev_dbg(i2c->adap.dev.parent,
 				"%s end of message sent, nmsgs: %d\n",
 				__func__, i2c->nmsgs);
-			if (i2c->nmsgs > 1) {
+			/* Don't move onto the next message until the TX FIFO empties,
+			 * to ensure that a NAK is not missed.
+			 */
+			if (i2c->nmsgs > 1 && (pend & XIIC_INTR_TX_EMPTY_MASK)) {
 				i2c->nmsgs--;
 				i2c->tx_msg++;
 				xfer_more = 1;
@@ -496,11 +499,7 @@ static irqreturn_t xiic_process(int irq, void *dev_id)
 					"%s Got TX IRQ but no more to do...\n",
 					__func__);
 			}
-		} else if (!xiic_tx_space(i2c) && (i2c->nmsgs == 1))
+		}
-			/* current frame is sent and is last,
-			 * make sure to disable tx half
-			 */
-			xiic_irq_dis(i2c, XIIC_INTR_TX_HALF_MASK);
 	}
 out:
 	dev_dbg(i2c->adap.dev.parent, "%s clr: 0x%x\n", __func__, clr);

drivers/iio/adc/Kconfig

@@ -896,6 +896,8 @@ config TI_ADS7950
 config TI_ADS8688
 	tristate "Texas Instruments ADS8688"
 	depends on SPI && OF
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
 	help
 	  If you say yes here you get support for Texas Instruments ADS8684 and
 	  and ADS8688 ADC chips

drivers/iio/common/hid-sensors/hid-sensor-trigger.c

@@ -46,7 +46,7 @@ static ssize_t _hid_sensor_set_report_latency(struct device *dev,
 	latency = integer * 1000 + fract / 1000;
 	ret = hid_sensor_set_report_latency(attrb, latency);
 	if (ret < 0)
-		return len;
+		return ret;
 
 	attrb->latency_ms = hid_sensor_get_report_latency(attrb);
 

drivers/iio/dac/Kconfig

@@ -335,6 +335,7 @@ config STM32_DAC
 
 config STM32_DAC_CORE
 	tristate
+	select REGMAP_MMIO
 
 config TI_DAC082S085
 	tristate "Texas Instruments 8/10/12-bit 2/4-channel DAC driver"

drivers/iio/light/opt3001.c

@@ -145,6 +145,10 @@ static const struct opt3001_scale opt3001_scales[] = {
 		.val = 20966,
 		.val2 = 400000,
 	},
+	{
+		.val = 41932,
+		.val2 = 800000,
+	},
 	{
 		.val = 83865,
 		.val2 = 600000,

drivers/iio/magnetometer/ak8975.c

@@ -673,22 +673,8 @@ static int ak8975_start_read_axis(struct ak8975_data *data,
 	if (ret < 0)
 		return ret;
 
-	/* This will be executed only for non-interrupt based waiting case */
+	/* Return with zero if the data is ready. */
-	if (ret & data->def->ctrl_masks[ST1_DRDY]) {
+	return !data->def->ctrl_regs[ST1_DRDY];
-		ret = i2c_smbus_read_byte_data(client,
-					       data->def->ctrl_regs[ST2]);
-		if (ret < 0) {
-			dev_err(&client->dev, "Error in reading ST2\n");
-			return ret;
-		}
-		if (ret & (data->def->ctrl_masks[ST2_DERR] |
-			   data->def->ctrl_masks[ST2_HOFL])) {
-			dev_err(&client->dev, "ST2 status error 0x%x\n", ret);
-			return -EINVAL;
-		}
-	}
-
-	return 0;
 }
 
 /* Retrieve raw flux value for one of the x, y, or z axis.  */
@@ -715,6 +701,20 @@ static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val)
 	if (ret < 0)
 		goto exit;
 
+	/* Read out ST2 for release lock on measurment data. */
+	ret = i2c_smbus_read_byte_data(client, data->def->ctrl_regs[ST2]);
+	if (ret < 0) {
+		dev_err(&client->dev, "Error in reading ST2\n");
+		goto exit;
+	}
+
+	if (ret & (data->def->ctrl_masks[ST2_DERR] |
+		   data->def->ctrl_masks[ST2_HOFL])) {
+		dev_err(&client->dev, "ST2 status error 0x%x\n", ret);
+		ret = -EINVAL;
+		goto exit;
+	}
+
 	mutex_unlock(&data->lock);
 
 	pm_runtime_mark_last_busy(&data->client->dev);

drivers/infiniband/core/iwcm.c

@@ -1178,7 +1178,7 @@ static int __init iw_cm_init(void)
 	if (ret)
 		return ret;
 
-	iwcm_wq = alloc_ordered_workqueue("iw_cm_wq", 0);
+	iwcm_wq = alloc_ordered_workqueue("iw_cm_wq", WQ_MEM_RECLAIM);
 	if (!iwcm_wq)
 		goto err_alloc;
 

drivers/infiniband/hw/bnxt_re/qplib_fp.h

@@ -150,7 +150,7 @@ struct bnxt_qplib_swqe {
 			};
 			u32		q_key;
 			u32		dst_qp;
-			u16		avid;
+			u32		avid;
 		} send;
 
 		/* Send Raw Ethernet and QP1 */