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Colin Ian King 8c9ff1adda block, bfq: don't dereference bic before null checking it 
The call to bfq_check_ioprio_change will dereference bic, however,
the null check for bic is after this call.  Move the the null
check on bic to before the call to avoid any potential null
pointer dereference issues.

Detected by CoverityScan, CID#1430138 ("Dereference before null check")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
 		2017-04-20 08:19:23 -06:00
..
partitions partitions/efi: Fix integer overflow in GPT size calculation 2017-01-17 09:02:31 -07:00
Kconfig blk-throttle: add configure option for new .low interface 2017-03-28 08:02:20 -06:00
Kconfig.iosched block, bfq: add full hierarchical scheduling and cgroups support 2017-04-19 08:30:26 -06:00
Makefile block, bfq: split bfq-iosched.c into multiple source files 2017-04-19 08:48:24 -06:00
badblocks.c badblocks: badblocks_set/clear update unacked_exist 2016-10-21 15:45:47 -06:00
bfq-cgroup.c block, bfq: split bfq-iosched.c into multiple source files 2017-04-19 08:48:24 -06:00
bfq-iosched.c block, bfq: don't dereference bic before null checking it 2017-04-20 08:19:23 -06:00
bfq-iosched.h block, bfq: split bfq-iosched.c into multiple source files 2017-04-19 08:48:24 -06:00
bfq-wf2q.c block, bfq: split bfq-iosched.c into multiple source files 2017-04-19 08:48:24 -06:00
bio-integrity.c block: remove bio_is_rw 2016-10-28 08:45:17 -06:00
bio.c block: trace completion of all bios. 2017-04-07 09:40:52 -06:00
blk-cgroup.c blkcg: allocate struct blkcg_gq outside request queue spinlock 2017-03-29 11:27:19 -06:00
blk-core.c block: Inline blk_rq_set_prio() 2017-04-19 17:38:34 -06:00
blk-exec.c block: introduce blk_rq_is_passthrough 2017-01-31 14:00:34 -07:00
blk-flush.c block: make __blk_end_bidi_request private 2017-04-19 10:19:47 -06:00
blk-integrity.c block: constify struct blk_integrity_profile 2017-03-24 20:34:39 -06:00
blk-ioc.c Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2017-03-03 10:53:35 -08:00
blk-lib.c block: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
blk-map.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
blk-merge.c block: implement splitting of REQ_OP_WRITE_ZEROES bios 2017-04-08 11:25:38 -06:00
blk-mq-cpumap.c blk-mq: export blk_mq_map_queues 2016-11-08 17:30:00 -05:00
blk-mq-debugfs.c blk-mq: Show symbolic names for hctx state and flags 2017-04-10 16:13:33 -06:00
blk-mq-pci.c blk-mq-pci: Fix two spelling mistakes 2017-03-29 11:09:51 -06:00
blk-mq-sched.c blk-mq-sched: provide hooks for initializing hardware queue data 2017-04-07 12:45:41 -06:00
blk-mq-sched.h blk-mq-sched: make completed_request() callback more useful 2017-04-14 14:06:57 -06:00
blk-mq-sysfs.c blk-mq: free hctx->cpumask in release handler of hctx's kobject 2017-03-08 09:56:12 -07:00
blk-mq-tag.c blk-mq: add shallow depth option for blk_mq_get_tag() 2017-04-14 14:06:54 -06:00
blk-mq-tag.h blk-mq-sched: Allocate sched reserved tags as specified in the original queue tagset 2017-03-02 08:56:04 -07:00
blk-mq-virtio.c blk-mq: provide a default queue mapping for virtio device 2017-02-27 20:54:05 +02:00
blk-mq.c block: Export blk_init_request_from_bio() 2017-04-19 17:38:30 -06:00
blk-mq.h blk-mq: add shallow depth option for blk_mq_get_tag() 2017-04-14 14:06:54 -06:00
blk-settings.c block: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
blk-softirq.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/topology.h> 2017-03-02 08:42:26 +01:00
blk-stat.c blk-throttle: add a mechanism to estimate IO latency 2017-03-28 08:02:20 -06:00
blk-stat.h blk-throttle: add a mechanism to estimate IO latency 2017-03-28 08:02:20 -06:00
blk-sysfs.c block: Make writeback throttling defaults consistent for SQ devices 2017-04-19 08:49:03 -06:00
blk-tag.c blk-mq-sched: add framework for MQ capable IO schedulers 2017-01-17 10:04:20 -07:00
blk-throttle.c blk-throttle: add latency target support 2017-03-28 08:02:20 -06:00
blk-timeout.c block: remove REQ_NO_TIMEOUT flag 2015-12-22 09:38:34 -07:00
blk-wbt.c block: Make writeback throttling defaults consistent for SQ devices 2017-04-19 08:49:03 -06:00
blk-wbt.h block: Make writeback throttling defaults consistent for SQ devices 2017-04-19 08:49:03 -06:00
blk-zoned.c block: Rename blk_queue_zone_size and bdev_zone_size 2017-01-12 07:58:32 -07:00
blk.h block: Export blk_init_request_from_bio() 2017-04-19 17:38:30 -06:00
bounce.c Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2015-09-19 18:57:09 -07:00
bsg-lib.c block: split scsi_request out of struct request 2017-01-27 15:08:35 -07:00
bsg.c lib/vsprintf.c: remove %Z support 2017-02-27 18:43:47 -08:00
cfq-iosched.c cfq: Disable writeback throttling by default 2017-04-05 08:15:08 -06:00
cmdline-parser.c block: remove unrelated header files and export symbol 2014-01-21 20:18:26 -08:00
compat_ioctl.c block: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
deadline-iosched.c block: enumify ELEVATOR_*_MERGE 2017-02-08 13:43:06 -07:00
elevator.c block: Make writeback throttling defaults consistent for SQ devices 2017-04-19 08:49:03 -06:00
genhd.c block: Fix oops scsi_disk_get() 2017-03-22 20:11:37 -06:00
ioctl.c block: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
ioprio.c block: Optimize ioprio_best() 2017-04-19 17:38:36 -06:00
kyber-iosched.c blk-mq: introduce Kyber multiqueue I/O scheduler 2017-04-14 14:06:58 -06:00
mq-deadline.c block: enumify ELEVATOR_*_MERGE 2017-02-08 13:43:06 -07:00
noop-iosched.c block: move existing elevator ops to union 2017-01-17 10:03:33 -07:00
opal_proto.h block/sed-opal: allocate struct opal_dev dynamically 2017-02-17 12:41:47 -07:00
partition-generic.c block: Rename blk_queue_zone_size and bdev_zone_size 2017-01-12 07:58:32 -07:00
scsi_ioctl.c block, scsi: move the retries field to struct scsi_request 2017-04-05 12:05:08 -06:00
sed-opal.c block: sed-opal: Tone down all the pr_* to debugs 2017-04-07 14:24:16 -06:00
t10-pi.c block: constify struct blk_integrity_profile 2017-03-24 20:34:39 -06:00