Vendor will define their own memory types on top of TTM_PL_PRIV, but call ttm_set_driver_manager directly without checking mem_type value when setting up memory manager. So add such check to aware the case when array bounds.
Signed-off-by: Leslie Shi Yuliang.Shi@amd.com Signed-off-by: Guchun Chen guchun.chen@amd.com --- include/drm/ttm/ttm_device.h | 1 + 1 file changed, 1 insertion(+)
diff --git a/include/drm/ttm/ttm_device.h b/include/drm/ttm/ttm_device.h index 7a0f561c57ee..24ad76ca8022 100644 --- a/include/drm/ttm/ttm_device.h +++ b/include/drm/ttm/ttm_device.h @@ -308,6 +308,7 @@ ttm_manager_type(struct ttm_device *bdev, int mem_type) static inline void ttm_set_driver_manager(struct ttm_device *bdev, int type, struct ttm_resource_manager *manager) { + BUG_ON(type >= TTM_NUM_MEM_TYPES); bdev->man_drv[type] = manager; }