[ 3.5.y.z extended stable ] Patch "dm snapshot: fix error return code in snapshot_ctr" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    dm snapshot: fix error return code in snapshot_ctr

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From dba0b1560271ef2a0bdee3d6d9a49265f83a188e Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei at 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 at trendmicro.com.cn>
Signed-off-by: Alasdair G Kergon <agk at redhat.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 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 5f4659e..8bd2d5f 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;
 	}

--
1.8.1.2