Commit 1e6d9153 authored Dec 20, 2010 by Tao Ma Committed by Joel Becker Dec 22, 2010

ocfs2: Release buffer_head in case of error in ocfs2_double_lock.



In ocfs2_double_lock, when ocfs2_inode_lock for inode1 fails, we
just unlock inode2 and return without releasing buffer we get from
inode_lock(inode2). The good thing is that it is freed by the only
caller ocfs2_rename when it exits.

But I don't think this is a right way for error handling. We should
free the buffer_head we get in ocfs2_double_lock before exit so that
the caller doesn't need to take care of it.

Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>

parent cfc069d3

fs/ocfs2/namei.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -1017,8 +1017,11 @@ static int ocfs2_double_lock(struct ocfs2_super *osb,
		* An error return must mean that no cluster locks
		* were held on function exit.
		*/
		if (oi1->ip_blkno != oi2->ip_blkno)
		if (oi1->ip_blkno != oi2->ip_blkno) {
		ocfs2_inode_unlock(inode2, 1);
		brelse(*bh2);
		*bh2 = NULL;
		}

		if (status != -ENOENT)
		mlog_errno(status);