ttm_bo_unref unconditionally calls kref_put on it's argument, so the
thing can't be NULL without already causing Oopses.
Spotted by coverity.
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
---
drivers/gpu/drm/ast/ast_main.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index 50535fd5a88d..38941a656312 100644
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -411,10 +411,9 @@ static void ast_bo_unref(struct ast_bo **bo)
tbo = &((*bo)->bo);
ttm_bo_unref(&tbo);
- if (tbo == NULL)
- *bo = NULL;
-
+ *bo = NULL;
}
+
void ast_gem_free_object(struct drm_gem_object *obj)
{
struct ast_bo *ast_bo = gem_to_ast_bo(obj);
--
1.8.5.2
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
http://lists.freedesktop.org/mailman/listinfo/dri-devel
