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Douglas Gilbert 2cc50a1946 blk_rq_map_user_iov: fix error override 
commit 69e0927b3774563c19b5fb32e91d75edc147fb62 upstream.

During stress tests by syzkaller on the sg driver the block layer
infrequently returns EINVAL. Closer inspection shows the block
layer was trying to return ENOMEM (which is much more
understandable) but for some reason overroad that useful error.

Patch below does not show this (unchanged) line:
   ret =__blk_rq_map_user_iov(rq, map_data, &i, gfp_mask, copy);
That 'ret' was being overridden when that function failed.

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-25 11:07:49 +01:00
..
partitions
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
badblocks.c
badblocks: fix wrong return value in badblocks_set if badblocks are disabled
2017-12-20 10:10:26 +01:00
bfq-cgroup.c
bfq: Declare local functions static
2017-09-01 13:56:37 -06:00
bfq-iosched.c
block,bfq: Disable writeback throttling
2017-12-25 14:26:26 +01:00
bfq-iosched.h
Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block
2017-09-07 11:59:42 -07:00
bfq-wf2q.c
block, bfq: guarantee update_next_in_service always returns an eligible entity
2017-08-31 08:20:31 -06:00
bio-integrity.c
Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block
2017-09-07 11:59:42 -07:00
bio.c
block-throttle: avoid double charge
2017-12-29 17:53:47 +01:00
blk-cgroup.c
blkcg: avoid free blkcg_root when failed to alloc blkcg policy
2017-08-25 13:51:07 -06:00
blk-core.c
blk-mq: quiesce queue before freeing queue
2018-02-16 20:23:09 +01:00
blk-exec.c
block: introduce new block status code type
2017-06-09 09:27:32 -06:00
blk-flush.c
block: update comments to reflect REQ_FLUSH -> REQ_PREFLUSH rename
2017-08-25 10:36:54 -06:00
blk-integrity.c
block: switch bios to blk_status_t
2017-06-09 09:27:32 -06:00
blk-ioc.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-lib.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-map.c
blk_rq_map_user_iov: fix error override
2018-02-25 11:07:49 +01:00
blk-merge.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-mq-cpumap.c
blk-mq: map queues to all present CPUs
2017-07-24 10:01:31 -06:00
blk-mq-debugfs.c
blk-mq-debugfs: fix device sched directory for default scheduler
2017-10-03 15:58:55 -06:00
blk-mq-debugfs.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-mq-pci.c
blk-mq-pci: add a fallback when pci_irq_get_affinity returns NULL
2017-08-18 08:08:14 -06:00
blk-mq-rdma.c
block: Add rdma affinity based queue mapping helper
2017-08-08 14:58:03 -04:00
blk-mq-sched.c
blk-mq-sched: dispatch from scheduler IFF progress is made in ->dispatch
2017-12-20 10:10:27 +01:00
blk-mq-sched.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-mq-sysfs.c
blk-mq: untangle debugfs and sysfs
2017-05-04 08:24:13 -06:00
blk-mq-tag.c
blk-mq: Make blk_mq_reinit_tagset() calls easier to read
2017-08-18 08:36:58 -06:00
blk-mq-tag.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
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: directly insert blk-mq request from blk_insert_cloned_request()
2017-09-11 16:43:57 -06:00
blk-mq.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-settings.c
block: Warn if blk_queue_rq_timed_out() is called for a blk-mq queue
2017-08-23 12:02:30 -06:00
blk-softirq.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-stat.c
blk-stat: don't use this_cpu_ptr() in a preemptable section
2017-05-10 07:40:18 -06:00
blk-stat.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-sysfs.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-tag.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-throttle.c
block-throttle: avoid double charge
2017-12-29 17:53:47 +01:00
blk-timeout.c
block: Fix a race between blk_cleanup_queue() and timeout handling
2017-11-30 08:40:52 +00:00
blk-wbt.c
blk-wbt: account flush requests correctly
2018-02-22 15:42:29 +01:00
blk-wbt.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-zoned.c
block: replace bi_bdev with a gendisk pointer and partitions index
2017-08-23 12:49:55 -06:00
blk.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
bounce.c
block: don't let passthrough IO go into .make_request_fn()
2018-01-02 20:31:05 +01:00
bsg-lib.c
bsg-lib: fix use-after-free under memory-pressure
2017-10-04 08:35:04 -06:00
bsg.c
bsg: remove #if 0'ed code
2017-08-29 10:50:30 -06:00
cfq-iosched.c
block/cfq: cache rightmost rb_node
2017-09-08 18:26:49 -07:00
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
deadline-iosched.c
block, scheduler: convert xxx_var_store to void
2017-08-28 10:01:08 -06:00
elevator.c
block: fix warning when I/O elevator is changed as request_queue is being removed
2017-08-28 10:52:44 -06:00
genhd.c
Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block
2017-09-07 11:59:42 -07:00
ioctl.c
block: remove the discard_zeroes_data flag
2017-04-08 11:25:38 -06:00
ioprio.c
block: Add fallthrough markers to switch statements
2017-06-21 11:46:07 -06:00
Kconfig
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
Kconfig.iosched
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
kyber-iosched.c
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-07-03 13:08:04 -07:00
Makefile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mq-deadline.c
mq-deadline: Enable auto-loading when built as module
2017-08-29 10:47:23 -06:00
noop-iosched.c
block: move existing elevator ops to union
2017-01-17 10:03:33 -07:00
opal_proto.h
block: sed-opal: Set MBRDone on S3 resume path if TPER is MBREnabled
2017-09-11 09:45:52 -06:00
partition-generic.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
scsi_ioctl.c
block: Change argument type of scsi_req_init()
2017-06-20 19:27:14 -06:00
sed-opal.c
block: sed-opal: Set MBRDone on S3 resume path if TPER is MBREnabled
2017-09-11 09:45:52 -06:00
t10-pi.c
t10-pi: Move opencoded contants to common header
2017-07-03 16:56:25 -06:00