1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index e13cb62bbae..09a3571c990 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;
                 }