Merge 4.19.124 into android-4.19-stable

Changes in 4.19.124
	net: dsa: Do not make user port errors fatal
	shmem: fix possible deadlocks on shmlock_user_lock
	net/sonic: Fix a resource leak in an error handling path in 'jazz_sonic_probe()'
	net: moxa: Fix a potential double 'free_irq()'
	drop_monitor: work around gcc-10 stringop-overflow warning
	virtio-blk: handle block_device_operations callbacks after hot unplug
	scsi: sg: add sg_remove_request in sg_write
	mmc: sdhci-acpi: Add SDHCI_QUIRK2_BROKEN_64_BIT_DMA for AMDI0040
	net: fix a potential recursive NETDEV_FEAT_CHANGE
	netlabel: cope with NULL catmap
	net: phy: fix aneg restart in phy_ethtool_set_eee
	pppoe: only process PADT targeted at local interfaces
	Revert "ipv6: add mtu lock check in __ip6_rt_update_pmtu"
	tcp: fix error recovery in tcp_zerocopy_receive()
	virtio_net: fix lockdep warning on 32 bit
	hinic: fix a bug of ndo_stop
	net: dsa: loop: Add module soft dependency
	net: ipv4: really enforce backoff for redirects
	netprio_cgroup: Fix unlimited memory leak of v2 cgroups
	net: tcp: fix rx timestamp behavior for tcp_recvmsg
	tcp: fix SO_RCVLOWAT hangs with fat skbs
	riscv: fix vdso build with lld
	dmaengine: pch_dma.c: Avoid data race between probe and irq handler
	dmaengine: mmp_tdma: Reset channel error on release
	cpufreq: intel_pstate: Only mention the BIOS disabling turbo mode once
	ALSA: hda/hdmi: fix race in monitor detection during probe
	drm/qxl: lost qxl_bo_kunmap_atomic_page in qxl_image_init_helper()
	ipc/util.c: sysvipc_find_ipc() incorrectly updates position index
	ALSA: hda/realtek - Fix S3 pop noise on Dell Wyse
	gfs2: Another gfs2_walk_metadata fix
	pinctrl: baytrail: Enable pin configuration setting for GPIO chip
	pinctrl: cherryview: Add missing spinlock usage in chv_gpio_irq_handler
	i40iw: Fix error handling in i40iw_manage_arp_cache()
	mmc: core: Check request type before completing the request
	mmc: block: Fix request completion in the CQE timeout path
	NFS: Fix fscache super_cookie index_key from changing after umount
	nfs: fscache: use timespec64 in inode auxdata
	NFSv4: Fix fscache cookie aux_data to ensure change_attr is included
	netfilter: conntrack: avoid gcc-10 zero-length-bounds warning
	arm64: fix the flush_icache_range arguments in machine_kexec
	netfilter: nft_set_rbtree: Introduce and use nft_rbtree_interval_start()
	IB/mlx4: Test return value of calls to ib_get_cached_pkey
	hwmon: (da9052) Synchronize access with mfd
	pnp: Use list_for_each_entry() instead of open coding
	gcc-10 warnings: fix low-hanging fruit
	kbuild: compute false-positive -Wmaybe-uninitialized cases in Kconfig
	Stop the ad-hoc games with -Wno-maybe-initialized
	gcc-10: disable 'zero-length-bounds' warning for now
	gcc-10: disable 'array-bounds' warning for now
	gcc-10: disable 'stringop-overflow' warning for now
	gcc-10: disable 'restrict' warning for now
	gcc-10: avoid shadowing standard library 'free()' in crypto
	ALSA: hda/realtek - Limit int mic boost for Thinkpad T530
	ALSA: rawmidi: Fix racy buffer resize under concurrent accesses
	ALSA: usb-audio: Add control message quirk delay for Kingston HyperX headset
	usb: core: hub: limit HUB_QUIRK_DISABLE_AUTOSUSPEND to USB5534B
	usb: host: xhci-plat: keep runtime active when removing host
	USB: gadget: fix illegal array access in binding with UDC
	usb: xhci: Fix NULL pointer dereference when enqueuing trbs from urb sg list
	ARM: dts: dra7: Fix bus_dma_limit for PCIe
	ARM: dts: imx27-phytec-phycard-s-rdk: Fix the I2C1 pinctrl entries
	cifs: fix leaked reference on requeued write
	x86: Fix early boot crash on gcc-10, third try
	x86/unwind/orc: Fix error handling in __unwind_start()
	exec: Move would_dump into flush_old_exec
	clk: rockchip: fix incorrect configuration of rk3228 aclk_gpu* clocks
	dwc3: Remove check for HWO flag in dwc3_gadget_ep_reclaim_trb_sg()
	usb: gadget: net2272: Fix a memory leak in an error handling path in 'net2272_plat_probe()'
	usb: gadget: audio: Fix a missing error return value in audio_bind()
	usb: gadget: legacy: fix error return code in gncm_bind()
	usb: gadget: legacy: fix error return code in cdc_bind()
	Revert "ALSA: hda/realtek: Fix pop noise on ALC225"
	clk: Unlink clock if failed to prepare or enable
	arm64: dts: rockchip: Replace RK805 PMIC node name with "pmic" on rk3328 boards
	arm64: dts: rockchip: Rename dwc3 device nodes on rk3399 to make dtc happy
	ARM: dts: r8a73a4: Add missing CMT1 interrupts
	arm64: dts: renesas: r8a77980: Fix IPMMU VIP[01] nodes
	ARM: dts: r8a7740: Add missing extal2 to CPG node
	KVM: x86: Fix off-by-one error in kvm_vcpu_ioctl_x86_setup_mce
	Makefile: disallow data races on gcc-10 as well
	Linux 4.19.124

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I3d253f677cc08337e64d316005a0ec0c33717940

ipc/util.c

@@ -735,21 +735,21 @@ static struct kern_ipc_perm *sysvipc_find_ipc(struct ipc_ids *ids, loff_t pos,
 			total++;
 	}
 
-	*new_pos = pos + 1;
+	ipc = NULL;
 	if (total >= ids->in_use)
-		return NULL;
+		goto out;
 
 	for (; pos < IPCMNI; pos++) {
 		ipc = idr_find(&ids->ipcs_idr, pos);
 		if (ipc != NULL) {
 			rcu_read_lock();
 			ipc_lock_object(ipc);
-			return ipc;
+			break;
 		}
 	}
-
-	/* Out of range - return NULL to terminate iteration */
-	return NULL;
+out:
+	*new_pos = pos + 1;
+	return ipc;
 }
 
 static void *sysvipc_proc_next(struct seq_file *s, void *it, loff_t *pos)