usb_stream_prepare_playback  484 sound/usb/usx2y/usb_stream.c 	if (usb_stream_prepare_playback(sk, inurb) < 0)
usb_stream_prepare_playback  580 sound/usb/usx2y/usb_stream.c 		if (usb_stream_prepare_playback(sk, inurb) < 0)