Record the value returned by subdevs from s_stream(0) and handle stop
failures when an error occurs.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: NEnrico Butera <ebutera@users.sourceforge.net>
Acked-by: NSakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>