PTR_ERR_OR_ZERO
ret = PTR_ERR_OR_ZERO(conn_state);
ret = PTR_ERR_OR_ZERO(crtc_state);
ret = PTR_ERR_OR_ZERO(plane_state);
ret = PTR_ERR_OR_ZERO(drm_new_conn_state);
return PTR_ERR_OR_ZERO(ent);
return PTR_ERR_OR_ZERO(pages);
ret = PTR_ERR_OR_ZERO(drm_atomic_get_connector_state(restore_state, connector));
ret = PTR_ERR_OR_ZERO(drm_atomic_get_crtc_state(restore_state, crtc));
ret = PTR_ERR_OR_ZERO(state);
ret = PTR_ERR_OR_ZERO(plane_state);
ret = PTR_ERR_OR_ZERO(plane_state);