[PATCH 5.4 12/17] xfs: fix some memory leaks in log recovery

Chandan Babu R
2022-09-21T03:25:35Z

commit 050552cbe06a3a9c3f977dcf11ff998ae1d5c2d5 upstream.

Fix a few places where we xlog_alloc_buffer a buffer, hit an error, and
then bail out without freeing the buffer.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Acked-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Chandan Babu R <chandan.babu@oracle.com>
---
fs/xfs/xfs_log_recover.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 02f2147952b3..248101876e1e 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -1347,10 +1347,11 @@ xlog_find_tail(
error = xlog_rseek_logrec_hdr(log, *head_blk, *head_blk, 1, buffer,
&rhead_blk, &rhead, &wrapped);
if (error < 0)
- return error;
+ goto done;
if (!error) {
xfs_warn(log->l_mp, "%s: couldn't find sync record", __func__);
- return -EFSCORRUPTED;
+ error = -EFSCORRUPTED;
+ goto done;
}
*tail_blk = BLOCK_LSN(be64_to_cpu(rhead->h_tail_lsn));

@@ -5318,7 +5319,8 @@ xlog_do_recovery_pass(
} else {
XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW,
log->l_mp);
- return -EFSCORRUPTED;
+ error = -EFSCORRUPTED;
+ goto bread_err1;
}
}

--
2.35.1