[PATCH v2] drm/radeon: only warn once in radeon_ttm_bo_destroy if va list not empty

[deathsimple@xxxxxxxxxxx (Christian König)]

Am 27.04.2017 um 16:10 schrieb Julien Isorce:
> Encountered a dozen of exact same backtraces when mesa's
> pb_cache_release_all_buffers is called after that a gpu reset failed.
>
> v2: Remove superfluous error message added in v1.
>
> bug: https://bugs.freedesktop.org/show_bug.cgi?id=96271
>
> Signed-off-by: Julien Isorce <jisorce at oblong.com>

Reviewed-by: Christian König <christian.koenig at amd.com>

> ---
>   drivers/gpu/drm/radeon/radeon_object.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
> index bec2ec0..8b72229 100644
> --- a/drivers/gpu/drm/radeon/radeon_object.c
> +++ b/drivers/gpu/drm/radeon/radeon_object.c
> @@ -81,7 +81,7 @@ static void radeon_ttm_bo_destroy(struct ttm_buffer_object *tbo)
>   	list_del_init(&bo->list);
>   	mutex_unlock(&bo->rdev->gem.mutex);
>   	radeon_bo_clear_surface_reg(bo);
> -	WARN_ON(!list_empty(&bo->va));
> +	WARN_ON_ONCE(!list_empty(&bo->va));
>   	drm_gem_object_release(&bo->gem_base);
>   	kfree(bo);
>   }