1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/char/drm/drm_stub.c b/drivers/char/drm/drm_stub.c
index 7b1d4e8659ba..6f748e194cf9 100644
--- a/drivers/char/drm/drm_stub.c
+++ b/drivers/char/drm/drm_stub.c
@@ -60,6 +60,7 @@ static int drm_fill_in_dev(drm_device_t * dev, struct pci_dev *pdev,
         int retcode;
 
         spin_lock_init(&dev->count_lock);
+        spin_lock_init(&dev->drw_lock);
         init_timer(&dev->timer);
         mutex_init(&dev->struct_mutex);
         mutex_init(&dev->ctxlist_mutex);