From dba5ed0cd12d8db5c0d2e1c869c2a50c5bcf6743 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <error27@gmail.com>
Date: Fri, 27 Mar 2009 13:34:28 +0300
Subject: drm: drm_fops.c unlock missing on error path

drm_open_helper() from drm_fops.c had a missing mutex_unlock in a error
path.

This was caught by smatch (http://repo.or.cz/w/smatch.git/).  Compile
tested.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index e13cb62..09a3571 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -274,6 +274,7 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
 		/* create a new master */
 		priv->minor->master = drm_master_create(priv->minor);
 		if (!priv->minor->master) {
+			mutex_unlock(&dev->struct_mutex);
 			ret = -ENOMEM;
 			goto out_free;
 		}
-- 
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