From 4fdb793ffe262cfc0b796d3b2cd05ca3b687deb9 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 13 Nov 2013 10:56:27 +0300
Subject: [PATCH] locks: missing unlock on error in generic_add_lease()

We should unlock here before returning.

Fixes: df4e8d2c1d2b ('locks: implement delegations')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/locks.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/locks.c b/fs/locks.c
index f99d52bdd05a..92a0f0a52b06 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1494,6 +1494,7 @@ static int generic_add_lease(struct file *filp, long arg, struct file_lock **flp
 
 	if (is_deleg && arg == F_WRLCK) {
 		/* Write delegations are not currently supported: */
+		mutex_unlock(&inode->i_mutex);
 		WARN_ON_ONCE(1);
 		return -EINVAL;
 	}
-- 
2.20.1