e72359e930
The crtc_states could be got concurrently if multiple atomic checks happen simultaneously, so ERR_PTR(-EDEADLK) could be returned from drm_atomic_get_crtc_state(). In such normal cases, we just rollback all added drm objects and userspace could try the same atomic check or commit again, so it's unnecessary to warn. Signed-off-by: Liu Ying <victor.liu@nxp.com> Reviewed-by: Sandor Yu <sandor.yu@nxp.com>