[PATCH 5.2 139/162] dm raid: add missing cleanup in raid_ctr()

[Greg Kroah-Hartman]

From: Wenwen Wang <wen...@cs.uga.edu>

commit dc1a3e8e0cc6b2293b48c044710e63395aeb4fb4 upstream.

If rs_prepare_reshape() fails, no cleanup is executed, leading to
leak of the raid_set structure allocated at the beginning of
raid_ctr(). To fix this issue, go to the label 'bad' if the error
occurs.

Fixes: 11e4723206683 ("dm raid: stop keeping raid set frozen altogether")
Cc: sta...@vger.kernel.org
Signed-off-by: Wenwen Wang <wen...@cs.uga.edu>
Signed-off-by: Mike Snitzer <snit...@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/md/dm-raid.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -3194,7 +3194,7 @@ static int raid_ctr(struct dm_target *ti
                          */
                        r = rs_prepare_reshape(rs);
                        if (r)
-                               return r;
+                               goto bad;
 
                        /* Reshaping ain't recovery, so disable recovery */
                        rs_setup_recovery(rs, MaxSector);