1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/char/drm/drm_stub.c b/drivers/char/drm/drm_stub.c
index 9138b49e676e..ee83ff9efed6 100644
--- a/drivers/char/drm/drm_stub.c
+++ b/drivers/char/drm/drm_stub.c
@@ -72,6 +72,8 @@ static int drm_fill_in_dev(struct drm_device * dev, struct pci_dev *pdev,
         mutex_init(&dev->struct_mutex);
         mutex_init(&dev->ctxlist_mutex);
 
+        idr_init(&dev->drw_idr);
+
         dev->pdev = pdev;
         dev->pci_device = pdev->device;
         dev->pci_vendor = pdev->vendor;