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linux/drivers
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Qian Cai 8cf6650421 iommu/amd: fix a crash in iova_magazine_free_pfns 
The commit b3aa14f022 ("iommu: remove the mapping_error dma_map_ops
method") incorrectly changed the checking from dma_ops_alloc_iova() in
map_sg() causes a crash under memory pressure as dma_ops_alloc_iova()
never return DMA_MAPPING_ERROR on failure but 0, so the error handling
is all wrong.

   kernel BUG at drivers/iommu/iova.c:801!
    Workqueue: kblockd blk_mq_run_work_fn
    RIP: 0010:iova_magazine_free_pfns+0x7d/0xc0
    Call Trace:
     free_cpu_cached_iovas+0xbd/0x150
     alloc_iova_fast+0x8c/0xba
     dma_ops_alloc_iova.isra.6+0x65/0xa0
     map_sg+0x8c/0x2a0
     scsi_dma_map+0xc6/0x160
     pqi_aio_submit_io+0x1f6/0x440 [smartpqi]
     pqi_scsi_queue_command+0x90c/0xdd0 [smartpqi]
     scsi_queue_rq+0x79c/0x1200
     blk_mq_dispatch_rq_list+0x4dc/0xb70
     blk_mq_sched_dispatch_requests+0x249/0x310
     __blk_mq_run_hw_queue+0x128/0x200
     blk_mq_run_work_fn+0x27/0x30
     process_one_work+0x522/0xa10
     worker_thread+0x63/0x5b0
     kthread+0x1d2/0x1f0
     ret_from_fork+0x22/0x40

Fixes: b3aa14f022 ("iommu: remove the mapping_error dma_map_ops method")
Signed-off-by: Qian Cai <cai@lca.pw>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-07-21 09:57:13 -07:00
..
accessibility
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 70
2019-05-24 17:36:47 +02:00
acpi
Merge branch 'akpm' (patches from Andrew)
2019-07-19 09:45:58 -07:00
amba
Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2019-07-12 12:24:03 -07:00
android
binder: fix possible UAF when freeing buffer
2019-06-13 10:35:55 +02:00
ata
Merge tag 'for-5.3/libata-20190708' of git://git.kernel.dk/linux-block
2019-07-09 10:59:26 -07:00
atm
atm: idt77252: Remove call to memset after dma_alloc_coherent
2019-07-15 11:06:27 -07:00
auxdisplay
Merge tag 'docs-5.3' of git://git.lwn.net/linux
2019-07-09 12:34:26 -07:00
base
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
bcma
…
block
Merge tag 'ceph-for-5.3-rc1' of git://github.com/ceph/ceph-client
2019-07-18 11:05:25 -07:00
bluetooth
Bluetooth: btusb: Add protocol support for MediaTek MT7663U USB devices
2019-07-06 21:44:25 +02:00
bus
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2019-07-19 17:13:56 -07:00
cdrom
docs: cdrom: convert docs to ReST and rename to *.rst
2019-06-14 14:20:46 -06:00
char
docs: admin-guide: add a series of orphaned documents
2019-07-15 11:03:02 -03:00
clk
Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
2019-07-17 10:07:48 -07:00
clocksource
clocksource/drivers/npcm: Fix misuse of GENMASK macro
2019-07-10 11:05:26 +02:00
connector
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
counter
Merge tag 'staging-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
2019-07-11 15:36:02 -07:00
cpufreq
Merge branch 'pm-cpufreq'
2019-07-18 09:49:30 +02:00
cpuidle
Merge branch 'pm-cpufreq'
2019-07-18 09:49:30 +02:00
crypto
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2019-07-19 12:23:37 -07:00
dax
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
dca
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 33
2019-05-24 17:27:11 +02:00
devfreq
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
dio
…
dma
Merge tag 'dmaengine-5.3-rc1' of git://git.infradead.org/users/vkoul/slave-dma
2019-07-17 09:55:43 -07:00
dma-buf
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
edac
EDAC: Fix global-out-of-bounds write when setting edac_mc_poll_msec
2019-06-27 10:24:47 -07:00
eisa
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 210
2019-05-30 11:29:53 -07:00
extcon
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
firewire
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
firmware
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2019-07-19 17:13:56 -07:00
fpga
mm: add account_locked_vm utility function
2019-07-16 19:23:25 -07:00
fsi
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 469
2019-06-19 17:09:11 +02:00
gnss
…
gpio
Merge tag 'gpio-v5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
2019-07-17 13:05:21 -07:00
gpu
Merge tag 'drm-next-2019-07-19' of git://anongit.freedesktop.org/drm/drm
2019-07-19 12:29:43 -07:00
hid
Merge tag 'v5.2' into next
2019-07-15 09:42:32 -07:00
hsi
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336
2019-06-05 17:37:07 +02:00
hv
proc/sysctl: add shared variables for range check
2019-07-18 17:08:07 -07:00
hwmon
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2019-07-19 17:13:56 -07:00
hwspinlock
hwspinlock: add the 'in_atomic' API
2019-06-29 21:08:14 -07:00
hwtracing
coresight: Make the coresight_device_fwnode_match declaration's fwnode parameter const
2019-07-12 14:42:05 -07:00
i2c
Merge branch 'i2c/for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2019-07-15 21:10:39 -07:00
i3c
Merge tag 'i3c/for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
2019-07-09 09:04:31 -07:00
ide
Merge tag 'docs-5.3' of git://git.lwn.net/linux
2019-07-09 12:34:26 -07:00
idle
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335
2019-06-05 17:37:06 +02:00
iio
Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2019-07-12 12:24:03 -07:00
infiniband
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2019-07-20 10:04:58 -07:00
input
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2019-07-20 12:22:30 -07:00
interconnect
…
iommu
iommu/amd: fix a crash in iova_magazine_free_pfns
2019-07-21 09:57:13 -07:00
ipack
Merge tag 'tty-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
2019-07-11 15:38:21 -07:00
irqchip
irqchip/gic-v3-its: Fix misuse of GENMASK macro
2019-07-10 11:04:17 +02:00
isdn
ISDN: hfcsusb: checking idx of ep configuration
2019-07-15 11:10:31 -07:00
leds
Merge tag 'leds-for-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
2019-07-09 08:59:39 -07:00
lightnvm
lightnvm: fix uninitialized pointer in nvm_remove_tgt()
2019-06-21 03:14:30 -06:00
macintosh
Merge tag 'powerpc-5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
2019-07-13 16:08:36 -07:00
mailbox
Merge tag 'mailbox-v5.3' of git://git.linaro.org/landing-teams/working/fujitsu/integration
2019-07-14 16:36:51 -07:00
mcb
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441
2019-06-05 17:37:17 +02:00
md
Merge tag 'for-5.3/dm-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
2019-07-18 14:49:33 -07:00
media
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2019-07-11 10:55:49 -07:00
memory
Merge tag 'kbuild-v5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2019-07-20 09:34:55 -07:00
memstick
Merge tag 'mmc-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
2019-07-11 18:11:21 -07:00
message
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2019-07-11 15:14:01 -07:00
mfd
Merge tag 'mfd-next-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
2019-07-15 20:18:40 -07:00
misc
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
mmc
Merge tag 'mmc-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
2019-07-11 18:11:21 -07:00
mtd
docs: mtd: move it to the driver-api book
2019-07-15 09:20:28 -03:00
mux
…
net
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-07-19 10:06:06 -07:00
nfc
nfc: st-nci: remove redundant assignment to variable r
2019-07-02 12:00:50 -07:00
ntb
Merge tag 'ntb-5.3' of git://github.com/jonmason/ntb
2019-07-21 09:46:59 -07:00
nubus
…
nvdimm
Merge branch 'akpm' (patches from Andrew)
2019-07-19 09:45:58 -07:00
nvme
Merge tag 'for-linus-20190715' of git://git.kernel.dk/linux-block
2019-07-15 21:20:52 -07:00
nvmem
Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2019-07-12 12:24:03 -07:00
of
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2019-07-17 11:26:09 -07:00
opp
Merge tag 'pci-v5.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
2019-07-15 20:44:49 -07:00
oprofile
vfs: Convert oprofilefs to use the new mount API
2019-07-04 22:01:59 -04:00
parisc
Merge tag 'spdx-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2019-06-08 12:52:42 -07:00
parport
Merge tag 'docs-5.3' of git://git.lwn.net/linux
2019-07-09 12:34:26 -07:00
pci
Merge tag 'ntb-5.3' of git://github.com/jonmason/ntb
2019-07-21 09:46:59 -07:00
pcmcia
Merge tag 'docs-5.3' of git://git.lwn.net/linux
2019-07-09 12:34:26 -07:00
perf
docs: perf: move to the admin-guide
2019-07-15 09:20:27 -03:00
phy
Merge tag 'phy-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next
2019-07-01 15:04:59 +02:00
pinctrl
Merge tag 'pinctrl-v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
2019-07-13 15:02:27 -07:00
platform
platform/x86: asus: Rename "fan mode" to "fan boost mode"
2019-07-17 19:07:58 +03:00
pnp
docs: driver-api: add a series of orphaned documents
2019-07-15 11:03:02 -03:00
power
Merge tag 'for-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
2019-07-15 21:06:15 -07:00
powercap
powercap/rapl: Add Ice Lake NNPI support to RAPL driver
2019-07-11 15:08:58 +02:00
pps
drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl
2019-07-16 19:23:24 -07:00
ps3
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 167
2019-05-30 11:26:39 -07:00
ptp
ptp: add QorIQ PTP support for DPAA2
2019-06-15 13:43:06 -07:00
pwm
Merge tag 'pwm/for-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
2019-07-09 08:57:45 -07:00
rapidio
Merge branch 'akpm' (patches from Andrew)
2019-07-17 08:58:04 -07:00
ras
RAS/CEC: Add copyright
2019-06-08 17:40:28 +02:00
regulator
Merge tag 'mfd-next-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
2019-07-15 20:18:40 -07:00
remoteproc
Merge tag 'rproc-v5.3' of git://github.com/andersson/remoteproc
2019-07-17 11:44:41 -07:00
reset
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2019-07-19 17:13:56 -07:00
rpmsg
…
rtc
Merge tag 'rtc-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
2019-07-17 10:03:50 -07:00
s390
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2019-07-20 10:04:58 -07:00
sbus
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61
2019-05-24 17:36:45 +02:00
scsi
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2019-07-20 10:04:58 -07:00
sfi
…
sh
…
siox
…
slimbus
…
sn
…
soc
Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2019-07-19 17:19:24 -07:00
soundwire
Merge tag 'soundwire-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire into char-misc-next
2019-07-05 08:15:08 +02:00
spi
Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2019-07-12 12:24:03 -07:00
spmi
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284
2019-06-05 17:36:37 +02:00
ssb
ssb/gpio: Remove unnecessary WARN_ON from driver_gpio
2019-06-25 08:05:34 +03:00
staging
Merge tag 'docs/v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
2019-07-16 12:21:41 -07:00
target
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2019-07-11 15:14:01 -07:00
tc
…
tee
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
2019-06-05 17:36:37 +02:00
thermal
Merge tag 'pm-5.3-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2019-07-18 09:32:28 -07:00
thunderbolt
Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2019-07-12 12:24:03 -07:00
tty
Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2019-07-19 17:05:08 -07:00
uio
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
usb
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
uwb
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
vfio
Merge tag 'vfio-v5.3-rc1' of git://github.com/awilliam/linux-vfio
2019-07-17 11:23:13 -07:00
vhost
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2019-07-17 11:26:09 -07:00
video
Merge tag 'backlight-next-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight
2019-07-16 09:25:04 -07:00
virt
…
virtio
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
visorbus
bus_find_device: Unify the match callback with class_find_device
2019-06-24 05:22:31 +02:00
vlynq
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102
2019-05-24 17:39:00 +02:00
vme
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
w1
docs: driver-api: add a series of orphaned documents
2019-07-15 11:03:02 -03:00
watchdog
watchdog: digicolor_wdt: Remove unused variable in dc_wdt_probe
2019-07-15 08:49:11 +02:00
xen
Merge tag 'for-linus-5.3a-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
2019-07-19 11:41:26 -07:00
zorro
…
Kconfig
fmc: Delete the FMC subsystem
2019-06-12 14:23:50 +02:00
Makefile
fmc: Delete the FMC subsystem
2019-06-12 14:23:50 +02:00