[PATCH 3.16.y-ckt 013/170] jbd2: free bh when descriptor block checksum fails

[Luis Henriques]

3.16.7-ckt1 -stable review patch.  If anyone has any objections, please let me know.

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

From: "Darrick J. Wong" <darrick.wong@xxxxxxxxxx>

commit 064d83892e9ba547f7d4eae22cbca066d95210ce upstream.

Free the buffer head if the journal descriptor block fails checksum
verification.

This is the jbd2 port of the e2fsprogs patch "e2fsck: free bh on csum
verify error in do_one_pass".

Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Reviewed-by: Eric Sandeen <sandeen@xxxxxxxxxx>
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
---
 fs/jbd2/recovery.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c
index 9b329b55ffe3..bcbef08a4d8f 100644
--- a/fs/jbd2/recovery.c
+++ b/fs/jbd2/recovery.c
@@ -525,6 +525,7 @@ static int do_one_pass(journal_t *journal,
 			    !jbd2_descr_block_csum_verify(journal,
 							  bh->b_data)) {
 				err = -EIO;
+				brelse(bh);
 				goto failed;
 			}
 
-- 
2.1.0

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