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| author | Dave Jones <davej@redhat.com> | 2014-03-20 15:03:58 -0600 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-03-20 22:32:06 -0700 |
| commit | 708f04d2abf4e90abee61d9ffb1f165038017ecf (patch) | |
| tree | c9a25407c8011c821da54ea51a4965c0e2a4f44d | |
| parent | 11d4616bd07f38d496bd489ed8fad1dc4d928823 (diff) | |
| download | linux-708f04d2abf4e90abee61d9ffb1f165038017ecf.tar.gz linux-708f04d2abf4e90abee61d9ffb1f165038017ecf.tar.bz2 linux-708f04d2abf4e90abee61d9ffb1f165038017ecf.zip | |
block: free q->flush_rq in blk_init_allocated_queue error paths
Commit 7982e90c3a57 ("block: fix q->flush_rq NULL pointer crash on
dm-mpath flush") moved an allocation to blk_init_allocated_queue(), but
neglected to free that allocation on the error paths that follow.
Signed-off-by: Dave Jones <davej@fedoraproject.org>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | block/blk-core.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index 4cd5ffc18442..bfe16d5af9f9 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -713,7 +713,7 @@ blk_init_allocated_queue(struct request_queue *q, request_fn_proc *rfn, return NULL; if (blk_init_rl(&q->root_rl, q, GFP_KERNEL)) - return NULL; + goto fail; q->request_fn = rfn; q->prep_rq_fn = NULL; @@ -737,12 +737,16 @@ blk_init_allocated_queue(struct request_queue *q, request_fn_proc *rfn, /* init elevator */ if (elevator_init(q, NULL)) { mutex_unlock(&q->sysfs_lock); - return NULL; + goto fail; } mutex_unlock(&q->sysfs_lock); return q; + +fail: + kfree(q->flush_rq); + return NULL; } EXPORT_SYMBOL(blk_init_allocated_queue); |