48 	int est_delay;  in snd_usb_pcm_delay()  local
63 	est_delay =  frame_diff * rate / 1000;  in snd_usb_pcm_delay()
65 		est_delay = subs->last_delay - est_delay;  in snd_usb_pcm_delay()
67 		est_delay = subs->last_delay + est_delay;  in snd_usb_pcm_delay()
69 	if (est_delay < 0)  in snd_usb_pcm_delay()
70 		est_delay = 0;  in snd_usb_pcm_delay()
71 	return est_delay;  in snd_usb_pcm_delay()
1560 	int est_delay;  in retire_playback_urb()  local
1572 	est_delay = snd_usb_pcm_delay(subs, runtime->rate);  in retire_playback_urb()
1585 	if (abs(est_delay - subs->last_delay) * 1000 > runtime->rate * 2)  in retire_playback_urb()
1588 			est_delay, subs->last_delay);  in retire_playback_urb()