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Jason Yan 621f6401fd scsi: libsas: fix length error in sas_smp_handler() 
The return value of smp_execute_task_sg() is the untransferred residual,
but bsg_job_done() requires the length of payload received. This makes
SMP passthrough commands from userland by sg ioctl to libsas get a wrong
response. The userland tools such as smp_utils failed because of these
wrong responses:

~#smp_discover /dev/bsg/expander-2\:13
response too short, len=0
~#smp_discover /dev/bsg/expander-2\:134
response too short, len=0

Fix this by passing the actual received length to bsg_job_done(). And if
smp_execute_task_sg() returns 0, this means received length is exactly
the buffer length.

[mkp: typo]

Fixes: 651a013649 ("scsi: scsi_transport_sas: switch to bsg-lib for SMP passthrough")
Cc: <stable@vger.kernel.org> # v4.14+
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Reported-by: chenqilin <chenqilin2@huawei.com>
Tested-by: chenqilin <chenqilin2@huawei.com>
CC: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 		2017-12-11 21:45:34 -05:00
..
accessibility License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
acpi Modules updates for v4.15 2017-11-15 13:46:33 -08:00
amba A couple of dma-mapping updates: 2017-11-14 16:54:12 -08:00
android Modules updates for v4.15 2017-11-15 13:46:33 -08:00
ata Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2017-11-15 14:11:41 -08:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-11-15 11:56:19 -08:00
auxdisplay Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
base DeviceTree for 4.15: 2017-11-14 18:25:40 -08:00
bcma Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-11-15 11:56:19 -08:00
block A couple of dma-mapping updates: 2017-11-14 16:54:12 -08:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
bus arm64 updates for 4.15 2017-11-15 10:56:56 -08:00
cdrom Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block 2017-11-14 15:32:19 -08:00
char IPMI updates for 4.15 2017-11-15 15:12:28 -08:00
clk One fix for USB clks on Uniphier PXs3 SoCs 2017-11-03 13:56:15 -07:00
clocksource arm64 updates for 4.15 2017-11-15 10:56:56 -08:00
connector
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cpufreq Power management updates for v4.15-rc1 2017-11-13 19:43:50 -08:00
cpuidle Merge branch 'pm-cpuidle' 2017-11-13 01:34:14 +01:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-11-14 10:52:09 -08:00
dax License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dca
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devfreq Merge branches 'pm-devfreq' and 'pm-tools' 2017-11-13 01:41:39 +01:00
dio License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dma dmaengine updates for 4.15-rc1 2017-11-14 16:49:31 -08:00
dma-buf License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
edac Modules updates for v4.15 2017-11-15 13:46:33 -08:00
eisa License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
extcon USB/PHY patches for 4.15-rc1 2017-11-13 21:14:07 -08:00
firewire Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
firmware Merge branch 'linus' into locking/core, to resolve conflicts 2017-11-07 10:32:44 +01:00
fmc License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fpga License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fsi
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gpio Merge branch 'i2c/for-4.15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2017-11-14 17:52:21 -08:00
gpu DeviceTree for 4.15: 2017-11-14 18:25:40 -08:00
hid Modules updates for v4.15 2017-11-15 13:46:33 -08:00
hsi HSI changes for the v4.15 series 2017-11-15 13:35:43 -08:00
hv x86/virt: Add enum for hypervisors to replace x86_hyper 2017-11-10 10:03:12 +01:00
hwmon hwmon updates for v4.15 2017-11-13 08:55:46 -08:00
hwspinlock License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hwtracing A couple of configfs cleanups: 2017-11-14 14:44:04 -08:00
i2c Merge branch 'i2c/for-4.15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2017-11-14 17:52:21 -08:00
ide Modules updates for v4.15 2017-11-15 13:46:33 -08:00
idle Merge branch 'pm-cpuidle' 2017-11-13 01:34:14 +01:00
iio A couple of configfs cleanups: 2017-11-14 14:44:04 -08:00
infiniband Updates for 4.15 kernel merge window 2017-11-15 14:54:53 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2017-11-14 18:07:18 -08:00
iommu IOMMU Updates for Linux v4.15 2017-11-14 16:43:27 -08:00
ipack
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irqchip pci-v4.15-changes 2017-11-15 15:01:28 -08:00
isdn Modules updates for v4.15 2017-11-15 13:46:33 -08:00
leds LED updates for 4.15rc1 2017-11-14 18:09:31 -08:00
lightnvm Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block 2017-11-14 15:32:19 -08:00
macintosh Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
mailbox Change to POLL api and fixes for FlexRM and OMAP driver 2017-11-15 13:39:18 -08:00
mcb License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
md Modules updates for v4.15 2017-11-15 13:46:33 -08:00
media Modules updates for v4.15 2017-11-15 13:46:33 -08:00
memory License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
memstick Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
message Modules updates for v4.15 2017-11-15 13:46:33 -08:00
mfd sound updates for 4.15-rc1 2017-11-14 18:01:46 -08:00
misc pci-v4.15-changes 2017-11-15 15:01:28 -08:00
mmc MMC core: 2017-11-13 10:17:35 -08:00
mtd Modules updates for v4.15 2017-11-15 13:46:33 -08:00
mux
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net Updates for 4.15 kernel merge window 2017-11-15 14:54:53 -08:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-11-15 11:56:19 -08:00
ntb
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nubus m68k updates for 4.15 2017-11-13 12:10:24 -08:00
nvdimm Merge branch 'for-linus' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2017-11-15 10:14:11 -08:00
nvme Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block 2017-11-14 15:32:19 -08:00
nvmem License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
of pci-v4.15-changes 2017-11-15 15:01:28 -08:00
opp
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oprofile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
parisc License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
parport Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
pci pci-v4.15-changes 2017-11-15 15:01:28 -08:00
pcmcia pci-v4.15-changes 2017-11-15 15:01:28 -08:00
perf arm64 updates for 4.15 2017-11-15 10:56:56 -08:00
phy USB/PHY patches for 4.15-rc1 2017-11-13 21:14:07 -08:00
pinctrl This is the bulk of GPIO changes for the v4.15 kernel cycle: 2017-11-14 17:23:44 -08:00
platform Modules updates for v4.15 2017-11-15 13:46:33 -08:00
pnp License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
power power supply and reset changes for the v4.15 series 2017-11-15 13:37:15 -08:00
powercap
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pps
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ps3
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ptp License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pwm License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rapidio License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ras Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
regulator MMC core: 2017-11-13 10:17:35 -08:00
remoteproc License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
reset License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rpmsg License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rtc Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-11-15 11:56:19 -08:00
sbus License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
scsi scsi: libsas: fix length error in sas_smp_handler() 2017-12-11 21:45:34 -05:00
sfi
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sh A couple of dma-mapping updates: 2017-11-14 16:54:12 -08:00
sn
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soc USB/PHY patches for 4.15-rc1 2017-11-13 21:14:07 -08:00
spi Merge remote-tracking branches 'spi/topic/sh-msiof', 'spi/topic/slave', 'spi/topic/spreadtrum' and 'spi/topic/tegra114' into spi-next 2017-11-10 21:33:51 +00:00
spmi
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ssb License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
staging Updates for 4.15 kernel merge window 2017-11-15 14:54:53 -08:00
target A couple of configfs cleanups: 2017-11-14 14:44:04 -08:00
tc
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tee License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
thermal License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
thunderbolt Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
tty Modules updates for v4.15 2017-11-15 13:46:33 -08:00
uio License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
usb sound updates for 4.15-rc1 2017-11-14 18:01:46 -08:00
uwb License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vfio VFIO Updates for Linux v4.15 2017-11-14 16:47:47 -08:00
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-11-15 11:56:19 -08:00
video License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
virt
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virtio License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vlynq
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vme License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
w1 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
watchdog MIPS changes for 4.15 2017-11-15 11:36:08 -08:00
xen Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
zorro License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig Merge branches 'pm-cpufreq-sched' and 'pm-opp' 2017-11-13 01:40:52 +01:00
Makefile Merge branches 'pm-cpufreq-sched' and 'pm-opp' 2017-11-13 01:40:52 +01:00