drm/qxl: unset a pointer in sync_obj_unref

This fixes a BUG_ON(bo->sync_obj != NULL); in ttm_bo_release_list. Cc: stable@vger.kernel.org #v3.10+ Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
mariux64 · Apr 2, 2014 · 41ccec3 · 41ccec3
1 parent bfe8b57
commit 41ccec3
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
@@ -433,6 +433,7 @@ static int qxl_sync_obj_flush(void *sync_obj)
 
 static void qxl_sync_obj_unref(void **sync_obj)
 {
+	*sync_obj = NULL;
 }
 
 static void *qxl_sync_obj_ref(void *sync_obj)