The tbo pointer will still have value even the amdgpu bo is freed. It doesn't make sense that it still points a freed memory. It could be refered mistakenly, so set it as null.
Signed-off-by: Huang Rui ray.huang@amd.com Cc: Christian König christian.koenig@amd.com Cc: Tom StDenis Tom.StDenis@amd.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index de990bd..ae84c08 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -108,6 +108,7 @@ static void amdgpu_bo_destroy(struct ttm_buffer_object *tbo) } kfree(bo->metadata); kfree(bo); + tbo = NULL; }
/**