diff --git a/[refs] b/[refs]
index c2f4d734decd..49925da3f41a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 157a4b311c45c9aba75a990464d9680867dc8805
+refs/heads/master: 79d753209245de3d6f02480535a8f5cf21ad02f7
diff --git a/trunk/drivers/tty/pty.c b/trunk/drivers/tty/pty.c
index d8558834ce57..a0ca0830cbcf 100644
--- a/trunk/drivers/tty/pty.c
+++ b/trunk/drivers/tty/pty.c
@@ -618,13 +618,12 @@ static int ptmx_open(struct inode *inode, struct file *filp)
 	/* find a device that is not in use. */
 	mutex_lock(&devpts_mutex);
 	index = devpts_new_index(inode);
+	mutex_unlock(&devpts_mutex);
 	if (index < 0) {
 		retval = index;
 		goto err_file;
 	}
 
-	mutex_unlock(&devpts_mutex);
-
 	mutex_lock(&tty_mutex);
 	tty = tty_init_dev(ptm_driver, index);
 
@@ -659,7 +658,6 @@ static int ptmx_open(struct inode *inode, struct file *filp)
 	mutex_unlock(&tty_mutex);
 	devpts_kill_index(inode, index);
 err_file:
-        mutex_unlock(&devpts_mutex);
 	tty_free_file(filp);
 	return retval;
 }