From 7dbae28560d16704190ba198fb7b5a070f49427c Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 10 May 2013 14:37:15 +0100
Subject: [PATCH] dm snapshot: fix error return code in snapshot_ctr

commit 09e8b813897a0f85bb401435d009228644c81214 upstream.

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>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
 drivers/md/dm-snap.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 34ec2b5cdb2c1..b4aaa7bf98a32 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -1117,6 +1117,7 @@ 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;
 	}
 
-- 
2.47.3