From: Joe Thornber <ejt@redhat.com>
If dm_sm_disk_create() fails the superblock must be unlocked.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
---
drivers/md/dm-thin-metadata.c | 1 +
1 file changed, 1 insertion(+)
Index: linux-3.3-rc6/drivers/md/dm-thin-metadata.c
===================================================================
--- linux-3.3-rc6.orig/drivers/md/dm-thin-metadata.c
+++ linux-3.3-rc6/drivers/md/dm-thin-metadata.c
@@ -385,6 +385,7 @@ static int init_pmd(struct dm_pool_metad
data_sm = dm_sm_disk_create(tm, nr_blocks);
if (IS_ERR(data_sm)) {
DMERR("sm_disk_create failed");
+ dm_tm_unlock(tm, sblock);
r = PTR_ERR(data_sm);
goto bad;
}