315 	if (!bcs->tx_skb) {	/* no skb is being sent */  in gigaset_modem_fill()
327 		bcs->tx_skb = skb_dequeue(&bcs->squeue);  in gigaset_modem_fill()
328 		if (!bcs->tx_skb)  in gigaset_modem_fill()
332 			(unsigned long) bcs->tx_skb);  in gigaset_modem_fill()
608 	gig_dbg(DEBUG_OUTPUT, "len: %d...", bcs->tx_skb->len);  in write_modem()
610 	if (!bcs->tx_skb->len) {  in write_modem()
611 		dev_kfree_skb_any(bcs->tx_skb);  in write_modem()
612 		bcs->tx_skb = NULL;  in write_modem()
617 	count = min(bcs->tx_skb->len, (unsigned) ucs->bulk_out_size);  in write_modem()
618 	skb_copy_from_linear_data(bcs->tx_skb, ucs->bulk_out_buffer, count);  in write_modem()
619 	skb_pull(bcs->tx_skb, count);  in write_modem()
641 	if (!bcs->tx_skb->len) {  in write_modem()
643 		gigaset_skb_sent(bcs, bcs->tx_skb);  in write_modem()
646 			(unsigned long) bcs->tx_skb);  in write_modem()
647 		dev_kfree_skb_any(bcs->tx_skb);  in write_modem()
648 		bcs->tx_skb = NULL;  in write_modem()