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Paolo Valente fd03177c33 block, bfq: handle NULL return value by bfq_init_rq() 
As reported in [1], the call bfq_init_rq(rq) may return NULL in case
of OOM (in particular, if rq->elv.icq is NULL because memory
allocation failed in failed in ioc_create_icq()).

This commit handles this circumstance.

[1] https://lkml.org/lkml/2019/7/22/824

Cc: Hsin-Yi Wang <hsinyi@google.com>
Cc: Nicolas Boichat <drinkcat@chromium.org>
Cc: Doug Anderson <dianders@chromium.org>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Reported-by: Hsin-Yi Wang <hsinyi@google.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-08-08 07:31:50 -06:00
..
partitions
docs: admin-guide: add a series of orphaned documents
2019-07-15 11:03:02 -03:00
badblocks.c
block: switch all files cleared marked as GPLv2 to SPDX tags
2019-04-30 16:11:57 -06:00
bfq-cgroup.c
block: rename CONFIG_DEBUG_BLK_CGROUP to CONFIG_BFQ_CGROUP_DEBUG
2019-06-20 10:32:35 -06:00
bfq-iosched.c
block, bfq: handle NULL return value by bfq_init_rq()
2019-08-08 07:31:50 -06:00
bfq-iosched.h
block, bfq: detect wakers and unconditionally inject their I/O
2019-06-25 09:07:34 -06:00
bfq-wf2q.c
block: switch all files cleared marked as GPLv2 or later to SPDX tags
2019-04-30 16:11:59 -06:00
bio-integrity.c
block/bio-integrity: fix a memory leak bug
2019-07-11 20:01:21 -06:00
bio.c
block: Allow mapping of vmalloc-ed buffers
2019-07-11 20:04:36 -06:00
blk-cgroup.c
blkcg: allow blkcg_policy->pd_stat() to print non-debug info too
2019-07-16 10:06:39 -06:00
blk-core.c
block: Disable write plugging for zoned block devices
2019-07-10 14:18:01 -06:00
blk-exec.c
block: add SPDX tags to block layer files missing licensing information
2019-04-30 16:12:03 -06:00
blk-flush.c
block: switch all files cleared marked as GPLv2 to SPDX tags
2019-04-30 16:11:57 -06:00
blk-integrity.c
docs: block: convert to ReST
2019-07-15 09:20:27 -03:00
blk-ioc.c
block: remove the queue_lock indirection
2018-11-15 12:17:28 -07:00
blk-iolatency.c
blkcg: allow blkcg_policy->pd_stat() to print non-debug info too
2019-07-16 10:06:39 -06:00
blk-lib.c
block: fix 32 bit overflow in __blkdev_issue_discard()
2018-11-14 08:17:18 -07:00
blk-map.c
block: remove the bi_phys_segments field in struct bio
2019-06-20 10:29:22 -06:00
blk-merge.c
block: nr_phys_segments needs to be zero for REQ_OP_WRITE_ZEROES
2019-07-03 07:20:40 -06:00
blk-mq-cpumap.c
blk-mq: Document the blk_mq_hw_queue_to_node() arguments
2019-05-31 15:12:34 -06:00
blk-mq-debugfs-zoned.c
block: Cleanup license notice
2019-01-17 21:21:40 -07:00
blk-mq-debugfs.c
for-5.3/block-20190708
2019-07-09 10:45:06 -07:00
blk-mq-debugfs.h
blk-mq: no need to check return value of debugfs_create functions
2019-06-13 03:00:30 -06:00
blk-mq-pci.c
block: Fix blk_mq_*_map_queues() kernel-doc headers
2019-05-31 15:12:34 -06:00
blk-mq-rdma.c
block: Fix blk_mq_*_map_queues() kernel-doc headers
2019-05-31 15:12:34 -06:00
blk-mq-sched.c
blk-mq: remove blk_mq_put_ctx()
2019-07-02 21:03:27 -06:00
blk-mq-sched.h
block: blk-mq: Remove blk_mq_sched_started_request and started_request
2019-07-23 07:25:09 -06:00
blk-mq-sysfs.c
for-5.2/block-20190507
2019-05-07 18:14:36 -07:00
blk-mq-tag.c
blk-mq: remove blk_mq_put_ctx()
2019-07-02 21:03:27 -06:00
blk-mq-tag.h
Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block
2017-11-14 15:32:19 -08:00
blk-mq-virtio.c
block: Fix blk_mq_*_map_queues() kernel-doc headers
2019-05-31 15:12:34 -06:00
blk-mq.c
block: blk-mq: Remove blk_mq_sched_started_request and started_request
2019-07-23 07:25:09 -06:00
blk-mq.h
block: Disable write plugging for zoned block devices
2019-07-10 14:18:01 -06:00
blk-pm.c
block: remove the queue_lock indirection
2018-11-15 12:17:28 -07:00
blk-pm.h
block: remove the queue_lock indirection
2018-11-15 12:17:28 -07:00
blk-rq-qos.c
rq-qos: use a mb for got_token
2019-07-18 10:20:14 -06:00
blk-rq-qos.h
block: add SPDX tags to block layer files missing licensing information
2019-04-30 16:12:03 -06:00
blk-settings.c
block: fix max segment size handling in blk_queue_virt_boundary
2019-07-26 12:50:57 -06:00
blk-softirq.c
block: remove a few unused exports
2018-11-15 12:13:25 -07:00
blk-stat.c
block: add SPDX tags to block layer files missing licensing information
2019-04-30 16:12:03 -06:00
blk-stat.h
block: deactivate blk_stat timer in wbt_disable_default()
2018-12-12 06:47:51 -07:00
blk-sysfs.c
block: free sched's request pool in blk_cleanup_queue
2019-06-06 22:39:39 -06:00
blk-throttle.c
blk-throttle: fix zero wait time for iops throttled group
2019-07-10 09:00:57 -06:00
blk-timeout.c
block: add SPDX tags to block layer files missing licensing information
2019-04-30 16:12:03 -06:00
blk-wbt.c
block: add SPDX tags to block layer files missing licensing information
2019-04-30 16:12:03 -06:00
blk-wbt.h
block: remove external dependency on wbt_flags
2018-07-09 09:07:54 -06:00
blk-zoned.c
block: Limit zone array allocation size
2019-07-11 20:04:40 -06:00
blk.h
block: mark blk_rq_bio_prep as inline
2019-06-20 10:29:22 -06:00
bounce.c
block: remove the i argument to bio_for_each_segment_all
2019-04-30 09:26:13 -06:00
bsg-lib.c
block: Fix bsg_setup_queue() kernel-doc header
2019-05-31 15:12:34 -06:00
bsg.c
block: switch all files cleared marked as GPLv2 to SPDX tags
2019-04-30 16:11:57 -06:00
cmdline-parser.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
compat_ioctl.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
elevator.c
block: free sched's request pool in blk_cleanup_queue
2019-06-06 22:39:39 -06:00
genhd.c
block: fix sysfs module parameters directory path in comment
2019-07-16 10:16:33 -06:00
ioctl.c
block: add SPDX tags to block layer files missing licensing information
2019-04-30 16:12:03 -06:00
ioprio.c
docs: block: convert to ReST
2019-07-15 09:20:27 -03:00
Kconfig
docs: cgroup-v1: add it to the admin-guide book
2019-07-15 11:03:02 -03:00
Kconfig.iosched
docs: block: convert to ReST
2019-07-15 09:20:27 -03:00
kyber-iosched.c
blk-mq: remove blk_mq_put_ctx()
2019-07-02 21:03:27 -06:00
Makefile
block: remove legacy IO schedulers
2018-11-07 13:42:32 -07:00
mq-deadline.c
docs: block: convert to ReST
2019-07-15 09:20:27 -03:00
opal_proto.h
block: sed-opal: check size of shadow mbr
2019-06-29 10:34:08 -06:00
partition-generic.c
block: fix use-after-free on gendisk
2019-04-22 09:48:12 -06:00
scsi_ioctl.c
block: switch all files cleared marked as GPLv2 to SPDX tags
2019-04-30 16:11:57 -06:00
sed-opal.c
block: sed-opal: check size of shadow mbr
2019-06-29 10:34:08 -06:00
t10-pi.c
block: switch all files cleared marked as GPLv2 to SPDX tags
2019-04-30 16:11:57 -06:00