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dm snapshot: fix error return code in snapshot_ctr

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Return -ENOMEM instead of success if unable to allocate pending
exception mempool in snapshot_ctr.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Cc: stable@vger.kernel.org
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
This commit is contained in:
Wei Yongjun 2013-05-10 14:37:15 +01:00 committed by Alasdair G Kergon
parent fa4d683af3
commit 09e8b81389
1 changed files with 1 additions and 0 deletions
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drivers/md/dm-snap.c
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@ -1121,6 +1121,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
s->pending_pool = mempool_create_slab_pool(MIN_IOS, pending_cache);
if (!s->pending_pool) {
ti->error = "Could not allocate mempool for pending exceptions";
r = -ENOMEM;
goto bad_pending_pool;
}