From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 10 May 2013 13:37:15 +0000 (+0100)
Subject: dm snapshot: fix error return code in snapshot_ctr
X-Git-Tag: v3.10-rc1~12^2~18
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=09e8b813897a0f85bb401435d009228644c81214;p=linux.git

dm snapshot: fix error return code in snapshot_ctr

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>
---

diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index c0e07026a8d1..c434e5aab2df 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -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;
 	}