Based on a downstream patch from Harry ten Berge.
Signed-off-by: NDaniel Mack <daniel@zonque.org>
Reported-and-tested-by: wenyi@tianyu-wool.com
Original-by: NHarry ten Berge <htenberge@gmail.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>