From afe1bb73f8ed588ab6268c27c5a447fe0484e48f Mon Sep 17 00:00:00 2001
From: Joseph Qi <joseph.qi@huawei.com>
Date: Fri, 24 May 2013 15:55:12 -0700
Subject: ocfs2: unlock rw lock if inode lock failed

In ocfs2_file_aio_write(), it does ocfs2_rw_lock() first and then
ocfs2_inode_lock().

But if ocfs2_inode_lock() failed, it goes to out_sems without unlocking
rw lock.  This will cause a bug in ocfs2_lock_res_free() when testing
res->l_ex_holders, which is increased in __ocfs2_cluster_lock() and
decreased in __ocfs2_cluster_unlock().

Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Li Zefan <lizefan@huawei.com>
Cc: "Duyongfeng (B)" <du.duyongfeng@huawei.com>
Acked-by: Sunil Mushran <sunil.mushran@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ocfs2/file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'fs/ocfs2')

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 8a7509f9e6f..ff54014a24e 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -2288,7 +2288,7 @@ relock:
 		ret = ocfs2_inode_lock(inode, NULL, 1);
 		if (ret < 0) {
 			mlog_errno(ret);
-			goto out_sems;
+			goto out;
 		}
 
 		ocfs2_inode_unlock(inode, 1);
-- 
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