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 @@
/* 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;
}