Bart Van Assche 293f2dcd0d RDMA/srp: Rework SCSI device reset handling ... commit 48396e80fb upstream. Since .scsi_done() must only be called after scsi_queue_rq() has finished, make sure that the SRP initiator driver does not call .scsi_done() while scsi_queue_rq() is in progress. Although invoking sg_reset -d while I/O is in progress works fine with kernel v4.20 and before, that is not the case with kernel v5.0-rc1. This patch avoids that the following crash is triggered with kernel v5.0-rc1: BUG: unable to handle kernel NULL pointer dereference at 0000000000000138 CPU: 0 PID: 360 Comm: kworker/0:1H Tainted: G B 5.0.0-rc1-dbg+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 Workqueue: kblockd blk_mq_run_work_fn RIP: 0010:blk_mq_dispatch_rq_list+0x116/0xb10 Call Trace: blk_mq_sched_dispatch_requests+0x2f7/0x300 __blk_mq_run_hw_queue+0xd6/0x180 blk_mq_run_work_fn+0x27/0x30 process_one_work+0x4f1/0xa20 worker_thread+0x67/0x5b0 kthread+0x1cf/0x1f0 ret_from_fork+0x24/0x30 Cc: <stable@vger.kernel.org> Fixes: 94a9174c63 ("IB/srp: reduce lock coverage of command completion") Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-02-27 10:09:00 +01:00
..
accessibility
acpi	acpi/nfit: Fix race accessing memdev in nfit_get_smbios_id()	2019-02-27 10:08:54 +01:00
amba
android	binder: fix race that allows malicious free of live buffer	2018-12-05 19:32:11 +01:00
ata	libata: Add NOLPM quirk for SAMSUNG MZ7TE512HMHP-000L1 SSD	2019-02-15 08:10:10 +01:00
atm	atm: he: fix sign-extension overflow on large shift	2019-02-27 10:08:57 +01:00
auxdisplay	auxdisplay: charlcd: fix x/y command parsing	2019-01-13 09:51:03 +01:00
base	cacheinfo: Keep the old value if of_property_read_u32 fails	2019-02-12 19:47:26 +01:00
bcma
block	block/swim3: Fix -EBUSY error when re-opening device after unmount	2019-02-12 19:47:18 +01:00
bluetooth	Bluetooth: hci_bcm: Handle deferred probing for the clock supply	2019-02-12 19:47:13 +01:00
bus
cdrom	gdrom: fix a memory leak bug	2019-02-12 19:47:18 +01:00
char	char/mwave: fix potential Spectre v1 vulnerability	2019-01-31 08:14:36 +01:00
clk	clk: imx6sl: ensure MMDC CH0 handshake is bypassed	2019-02-12 19:47:08 +01:00
clocksource	clocksource/drivers/integrator-ap: Add missing of_node_put()	2019-01-26 09:32:42 +01:00
connector
cpufreq	cpufreq: check if policy is inactive early in __cpufreq_get()	2019-02-20 10:25:40 +01:00
cpuidle	cpuidle: big.LITTLE: fix refcount leak	2019-02-12 19:47:08 +01:00
crypto	crypto: ux500 - Use proper enum in hash_set_dma_transfer	2019-02-12 19:47:17 +01:00
dax	mm, devm_memremap_pages: fix shutdown handling	2019-01-13 09:51:04 +01:00
dca
devfreq
dio
dma	dmaengine: imx-dma: fix wrong callback invoke	2019-02-12 19:47:24 +01:00
dma-buf
edac
eisa
extcon
firewire
firmware	x86/platform/UV: Use efi_runtime_lock to serialise BIOS calls	2019-02-20 10:25:48 +01:00
fmc
fpga	fpga: altera-cvp: fix 'bad IO access' on x86_64	2019-02-12 19:46:59 +01:00
fsi	fsi: master-ast-cf: select GENERIC_ALLOCATOR	2018-12-17 09:24:35 +01:00
gnss	gnss: sirf: fix activation retry handling	2018-12-13 09:16:22 +01:00
gpio	gpio: pxa: avoid attempting to set pin direction via pinctrl on MMP2	2019-02-27 10:08:49 +01:00
gpu	drm/sun4i: backend: add missing of_node_puts	2019-02-27 10:08:56 +01:00
hid	HID: debug: fix the ring buffer implementation	2019-02-12 19:47:24 +01:00
hsi
hv	Drivers: hv: vmbus: Check for ring when getting debug info	2019-01-31 08:14:36 +01:00
hwmon	hwmon: (tmp421) Correct the misspelling of the tmp442 compatible attribute in OF device ID table	2019-02-27 10:08:57 +01:00
hwspinlock
hwtracing	intel_th: msu: Fix an off-by-one in attribute store	2019-01-13 09:51:10 +01:00
i2c	i2c: sh_mobile: Add support for r8a774c0 (RZ/G2E)	2019-02-12 19:47:11 +01:00
ide	ide: fix a typo in the settings proc file name	2019-01-31 08:14:42 +01:00
idle
iio	iio: ti-ads8688: Update buffer allocation for timestamps	2019-02-15 08:10:10 +01:00
infiniband	RDMA/srp: Rework SCSI device reset handling	2019-02-27 10:09:00 +01:00
input	Input: elantech - enable 3rd button support on Fujitsu CELSIUS H780	2019-02-20 10:25:47 +01:00
iommu	iommu/arm-smmu-v3: Use explicit mb() when moving cons pointer	2019-02-12 19:47:07 +01:00
ipack
irqchip	irqchip/gic-v3-its: Plug allocation race for devices sharing a DevID	2019-02-12 19:47:24 +01:00
isdn	isdn: avm: Fix string plus integer warning from Clang	2019-02-27 10:08:58 +01:00
leds	leds: lp5523: fix a missing check of return value of lp55xx_read	2019-02-27 10:08:57 +01:00
lightnvm	lightnvm: pblk: add lock protection to list operations	2019-02-12 19:47:08 +01:00
macintosh
mailbox
mcb
md	dm thin: fix bug where bio that overwrites thin block ignores FUA	2019-02-20 10:25:49 +01:00
media	media: coda: fix H.264 deblocking filter controls	2019-02-12 19:47:07 +01:00
memory
memstick	memstick: Prevent memstick host from getting runtime suspended during card detection	2019-02-12 19:47:10 +01:00
message
mfd	mfd: mc13xxx: Fix a missing check of a register-read failure	2019-02-27 10:08:52 +01:00
misc	eeprom: at24: add support for 24c2048	2019-02-20 10:25:35 +01:00
mmc	mmc: meson-gx: fix interrupt name	2019-02-23 09:07:26 +01:00
mtd	mtd: rawnand: gpmi: fix MX28 bus master lockup problem	2019-02-15 08:10:10 +01:00
mux
net	net/mlx5e: XDP, fix redirect resources availability check	2019-02-27 10:08:59 +01:00
nfc
ntb
nubus
nvdimm	mm, devm_memremap_pages: fix shutdown handling	2019-01-13 09:51:04 +01:00
nvme	nvme: pad fake subsys NQN vid and ssvid with zeros	2019-02-20 10:25:41 +01:00
nvmem
of	of: overlay: do not duplicate properties from overlay for new nodes	2019-02-06 17:30:16 +01:00
opp	OPP: Use opp_table->regulators to verify no regulator case	2019-02-12 19:47:08 +01:00
oprofile
parisc
parport
pci	PCI: Fix __initdata issue with "pci=disable_acs_redir" parameter	2019-02-23 09:07:26 +01:00
pcmcia
perf	perf: arm_spe: handle devm_kasprintf() failure	2019-02-12 19:47:03 +01:00
phy	phy: sun4i-usb: add support for missing USB PHY index	2019-02-12 19:47:09 +01:00
pinctrl	pinctrl: cherryview: fix Strago DMI workaround	2019-02-15 08:10:11 +01:00
platform	platform/x86: mlx-platform: Fix tachometer registers	2019-02-12 19:47:08 +01:00
pnp
power	power: supply: olpc_battery: correct the temperature units	2019-01-13 09:51:10 +01:00
powercap
pps
ps3
ptp	ptp: Fix pass zero to ERR_PTR() in ptp_clock_register	2019-02-12 19:47:01 +01:00
pwm
rapidio
ras
regulator
remoteproc
reset
rpmsg
rtc	rtc: m41t80: Correct alarm month range with RTC reads	2019-01-09 17:38:48 +01:00
s390	s390/zcrypt: fix specification exception on z196 during ap probe	2019-02-20 10:25:48 +01:00
sbus	drivers/sbus/char: add of_node_put()	2018-12-21 14:15:17 +01:00
scsi	scsi: cxgb4i: add wait_for_completion()	2019-02-27 10:08:55 +01:00
sfi
sh
siox
slimbus	slimbus: ngd: mark PM functions as __maybe_unused	2018-12-19 19:19:49 +01:00
sn
soc	soc: bcm: brcmstb: Don't leak device tree node reference	2019-02-12 19:47:03 +01:00
soundwire
spi	spi: bcm2835: Unbreak the build of esoteric configs	2019-01-09 17:38:49 +01:00
spmi
ssb
staging	staging: speakup: fix tty-operation NULL derefs	2019-02-12 19:47:25 +01:00
target	scsi: tcmu: avoid cmd/qfull timers updated whenever a new cmd comes	2019-02-27 10:08:55 +01:00
tc
tee	tee: optee: avoid possible double list_del()	2019-02-12 19:47:08 +01:00
thermal	thermal: hwmon: inline helpers when CONFIG_THERMAL_HWMON is not set	2019-02-12 19:47:21 +01:00
thunderbolt	thunderbolt: Prevent root port runtime suspend during NVM upgrade	2018-12-17 09:24:36 +01:00
tty	serial: sh-sci: Do not free irqs that have already been freed	2019-02-12 19:47:26 +01:00
uio	uio: Fix an Oops on load	2018-11-27 16:13:09 +01:00
usb	usb: gadget: musb: fix short isoc packets with inventra dma	2019-02-12 19:47:25 +01:00
uwb
vfio	vfio/type1: Fix unmap overflow off-by-one	2019-01-16 22:04:34 +01:00
vhost	vhost: return EINVAL if iovecs size does not match the message size	2019-02-27 10:08:56 +01:00
video	backlight: pwm_bl: Fix devicetree parsing with auto-generated brightness tables	2019-02-27 10:08:50 +01:00
virt	vbox: fix link error with 'gcc -Og'	2019-02-12 19:46:59 +01:00
virtio
visorbus
vlynq
vme
w1
watchdog	watchdog: mt7621_wdt/rt2880_wdt: Fix compilation problem	2019-02-27 10:08:52 +01:00
xen	pvcalls-front: fix potential null dereference	2019-02-27 10:08:56 +01:00
zorro
Kconfig
Makefile