169 			if (s->async) {  in comedi_device_detach_cleanup()
171 				kfree(s->async);  in comedi_device_detach_cleanup()
453 	struct comedi_cmd *cmd = &s->async->cmd;  in comedi_bytes_per_scan()
462 	struct comedi_async *async = s->async;  in __comedi_nscans_left()  local
463 	struct comedi_cmd *cmd = &async->cmd;  in __comedi_nscans_left()
468 		if (async->scans_done < cmd->stop_arg)  in __comedi_nscans_left()
469 			scans_left = cmd->stop_arg - async->scans_done;  in __comedi_nscans_left()
514 	struct comedi_async *async = s->async;  in comedi_nsamples_left()  local
515 	struct comedi_cmd *cmd = &async->cmd;  in comedi_nsamples_left()
527 		comedi_bytes_to_samples(s, async->scan_progress);  in comedi_nsamples_left()
548 	struct comedi_async *async = s->async;  in comedi_inc_scan_progress()  local
549 	struct comedi_cmd *cmd = &async->cmd;  in comedi_inc_scan_progress()
554 		async->cur_chan += comedi_bytes_to_samples(s, num_bytes);  in comedi_inc_scan_progress()
555 		async->cur_chan %= cmd->chanlist_len;  in comedi_inc_scan_progress()
558 	async->scan_progress += num_bytes;  in comedi_inc_scan_progress()
559 	if (async->scan_progress >= scan_length) {  in comedi_inc_scan_progress()
560 		unsigned int nscans = async->scan_progress / scan_length;  in comedi_inc_scan_progress()
562 		if (async->scans_done < (UINT_MAX - nscans))  in comedi_inc_scan_progress()
563 			async->scans_done += nscans;  in comedi_inc_scan_progress()
565 			async->scans_done = UINT_MAX;  in comedi_inc_scan_progress()
567 		async->scan_progress %= scan_length;  in comedi_inc_scan_progress()
568 		async->events |= COMEDI_CB_EOS;  in comedi_inc_scan_progress()
592 	unsigned int events = s->async->events;  in comedi_handle_events()
644 	struct comedi_async *async;  in __comedi_device_postconfig_async()  local
663 	async = kzalloc(sizeof(*async), GFP_KERNEL);  in __comedi_device_postconfig_async()
664 	if (!async)  in __comedi_device_postconfig_async()
667 	init_waitqueue_head(&async->wait_head);  in __comedi_device_postconfig_async()
668 	s->async = async;  in __comedi_device_postconfig_async()
670 	async->max_bufsize = comedi_default_buf_maxsize_kb * 1024;  in __comedi_device_postconfig_async()
672 	if (buf_size > async->max_bufsize)  in __comedi_device_postconfig_async()
673 		buf_size = async->max_bufsize;  in __comedi_device_postconfig_async()