Merge 4.19.231 into android-4.19-stable

Changes in 4.19.231
	Makefile.extrawarn: Move -Wunaligned-access to W=1
	net: usb: ax88179_178a: Fix out-of-bounds accesses in RX fixup
	serial: parisc: GSC: fix build when IOSAPIC is not set
	parisc: Fix data TLB miss in sba_unmap_sg
	parisc: Fix sglist access in ccio-dma.c
	btrfs: send: in case of IO error log it
	net: ieee802154: at86rf230: Stop leaking skb's
	selftests/zram: Skip max_comp_streams interface on newer kernel
	selftests/zram01.sh: Fix compression ratio calculation
	selftests/zram: Adapt the situation that /dev/zram0 is being used
	ax25: improve the incomplete fix to avoid UAF and NPD bugs
	vfs: make freeze_super abort when sync_filesystem returns error
	quota: make dquot_quota_sync return errors from ->sync_fs
	nvme: fix a possible use-after-free in controller reset during load
	nvme-rdma: fix possible use-after-free in transport error_recovery work
	Revert "module, async: async_synchronize_full() on module init iff async is used"
	iwlwifi: fix use-after-free
	drm/radeon: Fix backlight control on iMac 12,1
	xfrm: Don't accidentally set RTO_ONLINK in decode_session4()
	taskstats: Cleanup the use of task->exit_code
	mmc: block: fix read single on recovery logic
	vsock: remove vsock from connected table when connect is interrupted by a signal
	iwlwifi: pcie: fix locking when "HW not ready"
	iwlwifi: pcie: gen2: fix locking when "HW not ready"
	net: dsa: lan9303: fix reset on probe
	net: ieee802154: ca8210: Fix lifs/sifs periods
	ping: fix the dif and sdif check in ping_lookup
	drop_monitor: fix data-race in dropmon_net_event / trace_napi_poll_hit
	bonding: fix data-races around agg_select_timer
	libsubcmd: Fix use-after-free for realloc(..., 0)
	ALSA: hda: Fix regression on forced probe mask option
	ALSA: hda: Fix missing codec probe on Shenker Dock 15
	ASoC: ops: Fix stereo change notifications in snd_soc_put_volsw()
	ASoC: ops: Fix stereo change notifications in snd_soc_put_volsw_range()
	powerpc/lib/sstep: fix 'ptesync' build error
	ext4: check for out-of-order index extents in ext4_valid_extent_entries()
	block/wbt: fix negative inflight counter when remove scsi device
	NFS: LOOKUP_DIRECTORY is also ok with symlinks
	NFS: Do not report writeback errors in nfs_getattr()
	mtd: rawnand: qcom: Fix clock sequencing in qcom_nandc_probe()
	EDAC: Fix calculation of returned address and next offset in edac_align_ptr()
	net: sched: limit TC_ACT_REPEAT loops
	dmaengine: sh: rcar-dmac: Check for error num after setting mask
	i2c: brcmstb: fix support for DSL and CM variants
	lib/iov_iter: initialize "flags" in new pipe_buffer
	mtd: rawnand: brcmnand: Refactored code to introduce helper functions
	mtd: rawnand: brcmnand: Fixed incorrect sub-page ECC status
	Drivers: hv: vmbus: Expose monitor data only when monitor pages are used
	Drivers: hv: vmbus: Fix memory leak in vmbus_add_channel_kobj
	KVM: x86/pmu: Use AMD64_RAW_EVENT_MASK for PERF_TYPE_RAW
	ARM: OMAP2+: hwmod: Add of_node_put() before break
	irqchip/sifive-plic: Add missing thead,c900-plic match string
	netfilter: conntrack: don't refresh sctp entries in closed state
	arm64: dts: meson-gx: add ATF BL32 reserved-memory region
	kconfig: let 'shell' return enough output for deep path names
	ata: libata-core: Disable TRIM on M88V29
	tracing: Fix tp_printk option related with tp_printk_stop_on_boot
	net: usb: qmi_wwan: Add support for Dell DW5829e
	net: macb: Align the dma and coherent dma masks
	Linux 4.19.231

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ifea29f81ea3bbfcc6f305c258aa0527711d128d1

drivers/nvme/host/core.c

@@ -3466,7 +3466,14 @@ static void nvme_async_event_work(struct work_struct *work)
 		container_of(work, struct nvme_ctrl, async_event_work);
 
 	nvme_aen_uevent(ctrl);
-	ctrl->ops->submit_async_event(ctrl);
+
+	/*
+	 * The transport drivers must guarantee AER submission here is safe by
+	 * flushing ctrl async_event_work after changing the controller state
+	 * from LIVE and before freeing the admin queue.
+	*/
+	if (ctrl->state == NVME_CTRL_LIVE)
+		ctrl->ops->submit_async_event(ctrl);
 }
 
 static bool nvme_ctrl_pp_status(struct nvme_ctrl *ctrl)