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Colin Ian King 3b82a051c1 drivers/block/zram/zram_drv.c: fix error return codes not being returned in writeback_store 
Currently when an error code -EIO or -ENOSPC in the for-loop of
writeback_store the error code is being overwritten by a ret = len
assignment at the end of the function and the error codes are being
lost.  Fix this by assigning ret = len at the start of the function and
remove the assignment from the end, hence allowing ret to be preserved
when error codes are assigned to it.

Addresses Coverity ("Unused value")

Link: http://lkml.kernel.org/r/20191128122958.178290-1-colin.king@canonical.com
Fixes: a939888ec3 ("zram: support idle/huge page writeback")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31 10:30:39 -08:00
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accessibility
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acpi
Merge branch 'core-headers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-01-28 08:20:54 -08:00
amba
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android
Merge tag 'for-5.6/io_uring-vfs-2020-01-29' of git://git.kernel.dk/linux-block
2020-01-29 18:53:37 -08:00
ata
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2020-01-29 18:16:16 -08:00
atm
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-01-28 16:02:33 -08:00
auxdisplay
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base
mm/memory_hotplug: pass in nid to online_pages()
2020-01-31 10:30:39 -08:00
bcma
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-01-28 16:02:33 -08:00
block
drivers/block/zram/zram_drv.c: fix error return codes not being returned in writeback_store
2020-01-31 10:30:39 -08:00
bluetooth
Bluetooth: btrtl: Use kvmalloc for FW allocations
2020-01-24 19:57:53 +01:00
bus
Merge tag 'char-misc-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2020-01-29 10:35:54 -08:00
cdrom
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char
Merge tag 'char-misc-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2020-01-29 10:35:54 -08:00
clk
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
2020-01-27 13:03:00 -08:00
clocksource
Merge tag 'timers-core-2020-01-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-01-27 16:47:05 -08:00
connector
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counter
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cpufreq
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
2020-01-27 13:03:00 -08:00
cpuidle
Merge branch 'intel_idle+acpi'
2020-01-23 00:35:50 +01:00
crypto
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-01-28 16:02:33 -08:00
dax
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dca
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devfreq
PM / devfreq: Add debugfs support with devfreq_summary file
2020-01-16 19:14:49 +09:00
dio
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dma
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
2020-01-27 13:03:00 -08:00
dma-buf
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edac
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
2020-01-27 13:03:00 -08:00
eisa
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extcon
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firewire
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firmware
Merge tag 'char-misc-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2020-01-29 10:35:54 -08:00
fpga
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fsi
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gnss
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gpio
Merge tag 'pinctrl-v5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
2020-01-29 09:51:36 -08:00
gpu
mm, tree-wide: rename put_user_page*() to unpin_user_page*()
2020-01-31 10:30:38 -08:00
greybus
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hid
Merge branch 'for-5.6/logitech' into for-linus
2020-01-27 15:49:49 +01:00
hsi
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hv
clocksource/drivers/hyper-v: Untangle stimers and timesync from clocksources
2020-01-16 19:09:02 +01:00
hwmon
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
2020-01-27 13:03:00 -08:00
hwspinlock
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hwtracing
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i2c
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
2020-01-27 13:03:00 -08:00
i3c
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ide
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idle
Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-01-28 12:46:42 -08:00
iio
Merge 5.5-rc7 into staging-next
2020-01-22 09:05:34 +01:00
infiniband
mm, tree-wide: rename put_user_page*() to unpin_user_page*()
2020-01-31 10:30:38 -08:00
input
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
2020-01-27 13:03:00 -08:00
interconnect
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iommu
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
2020-01-27 13:03:00 -08:00
ipack
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irqchip
Merge tag 'irq-core-2020-01-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-01-27 17:22:21 -08:00
isdn
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leds
leds: lm3532: add pointer to documentation and fix typo
2020-01-22 21:08:24 +01:00
lightnvm
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macintosh
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mailbox
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mcb
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md
Merge tag 'for-5.6/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
2020-01-29 18:08:49 -08:00
media
mm, tree-wide: rename put_user_page*() to unpin_user_page*()
2020-01-31 10:30:38 -08:00
memory
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memstick
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message
Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net
2020-01-19 22:10:04 +01:00
mfd
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misc
Merge tag 'char-misc-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2020-01-29 10:35:54 -08:00
mmc
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
2020-01-27 13:03:00 -08:00
mtd
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
2020-01-27 13:03:00 -08:00
mux
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net
ocfs2/dlm: move BITS_TO_BYTES() to bitops.h for wider use
2020-01-31 10:30:36 -08:00
nfc
Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net
2020-01-19 22:10:04 +01:00
ntb
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nubus
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nvdimm
mm: Cleanup __put_devmap_managed_page() vs ->page_free()
2020-01-31 10:30:37 -08:00
nvme
Merge tag 'for-5.6/block-2020-01-27' of git://git.kernel.dk/linux-block
2020-01-27 12:38:25 -08:00
nvmem
nvmem: add QTI SDAM driver
2020-01-16 20:56:49 +01:00
of
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opp
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
2020-01-27 13:03:00 -08:00
oprofile
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parisc
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parport
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pci
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
2020-01-27 13:03:00 -08:00
pcmcia
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perf
perf/imx_ddr: Fix cpu hotplug state cleanup
2020-01-15 12:48:40 +00:00
phy
Merge tag 'usb-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
2020-01-29 10:09:44 -08:00
pinctrl
Merge tag 'pinctrl-v5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
2020-01-29 09:51:36 -08:00
platform
mm, tree-wide: rename put_user_page*() to unpin_user_page*()
2020-01-31 10:30:38 -08:00
pnp
PNP: isapnp: remove defined but not used function 'isapnp_checksum'
2020-01-23 00:26:13 +01:00
power
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powercap
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pps
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ps3
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ptp
Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net
2020-01-19 22:10:04 +01:00
pwm
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rapidio
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ras
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regulator
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
2020-01-27 13:03:00 -08:00
remoteproc
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reset
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rpmsg
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rtc
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
2020-01-27 13:03:00 -08:00
s390
s390/qeth: remove HARDSETUP state
2020-01-26 15:20:32 +01:00
sbus
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scsi
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2020-01-29 18:16:16 -08:00
sfi
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sh
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siox
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slimbus
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soc
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
2020-01-27 13:03:00 -08:00
soundwire
soundwire: cadence: fix kernel-doc parameter descriptions
2020-01-16 17:34:38 +05:30
spi
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
2020-01-27 13:03:00 -08:00
spmi
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ssb
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staging
Merge tag 'staging-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
2020-01-29 10:15:11 -08:00
target
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2020-01-29 18:16:16 -08:00
tc
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tee
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2020-01-28 15:38:56 -08:00
thermal
Merge tag 'thermal-v5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux
2020-01-28 16:31:08 -08:00
thunderbolt
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tty
Merge tag 'tty-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
2020-01-29 10:13:27 -08:00
uio
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usb
Merge tag 'usb-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
2020-01-29 10:09:44 -08:00
vfio
mm, tree-wide: rename put_user_page*() to unpin_user_page*()
2020-01-31 10:30:38 -08:00
vhost
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video
Merge tag 'tty-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
2020-01-29 10:13:27 -08:00
virt
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virtio
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visorbus
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vlynq
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vme
Merge tag 'char-misc-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2020-01-29 10:35:54 -08:00
w1
Merge tag 'char-misc-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2020-01-29 10:35:54 -08:00
watchdog
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
2020-01-27 13:03:00 -08:00
xen
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zorro
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Kconfig
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Makefile
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