[PATCH 3.16 157/305] ext4: fix buffer leak in ext4_xattr_move_to_block() on error path

[Ben Hutchings]

3.16.63-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Vasily Averin <vvs@xxxxxxxxxxxxx>

commit 6bdc9977fcdedf47118d2caf7270a19f4b6d8a8f upstream.

Fixes: 3f2571c1f91f ("ext4: factor out xattr moving")
Fixes: 6dd4ee7cab7e ("ext4: Expand extra_inodes space per ...")
Reviewed-by: Jan Kara <jack@xxxxxxx>
Signed-off-by: Vasily Averin <vvs@xxxxxxxxxxxxx>
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
 fs/ext4/xattr.c | 2 ++
 1 file changed, 2 insertions(+)

--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -1529,6 +1529,8 @@ cleanup:
 	kfree(buffer);
 	if (is)
 		brelse(is->iloc.bh);
+	if (bs)
+		brelse(bs->bh);
 	kfree(is);
 	kfree(bs);
 	brelse(bh);