Only allow creator to change shared buffer mask.

diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c
index bdeefec..d40be07 100644 (file)
--- a/linux-core/drm_bo.c
+++ b/linux-core/drm_bo.c
@@ -1540,8 +1540,16 @@ int drm_bo_handle_validate(struct drm_file * file_priv, uint32_t handle,
        if (!bo) {
                return -EINVAL;
        }
-
        
+       /*
+        * Only allow creator to change shared buffer mask.
+        */
+
+       if (bo->base.owner != file_priv) {
+               flags = 0x0;
+               mask = 0x0;
+       }
+               
        ret = drm_bo_do_validate(bo, flags, mask, hint, fence_class,
                                 no_wait, rep);