334 		if (!bcs->tx_skb) { /* no skb is being sent */  in gigaset_modem_fill()
345 				bcs->tx_skb = skb_dequeue(&bcs->squeue);  in gigaset_modem_fill()
346 				if (bcs->tx_skb)  in gigaset_modem_fill()
349 						(unsigned long) bcs->tx_skb);  in gigaset_modem_fill()
353 		if (bcs->tx_skb) {  in gigaset_modem_fill()
645 	gig_dbg(DEBUG_WRITE, "len: %d...", bcs->tx_skb->len);  in write_modem()
647 	if (!bcs->tx_skb->len) {  in write_modem()
648 		dev_kfree_skb_any(bcs->tx_skb);  in write_modem()
649 		bcs->tx_skb = NULL;  in write_modem()
656 	count = min(bcs->tx_skb->len, (unsigned) ucs->bulk_out_size);  in write_modem()
657 	skb_copy_from_linear_data(bcs->tx_skb, ucs->bulk_out_buffer, count);  in write_modem()
658 	skb_pull(bcs->tx_skb, count);  in write_modem()
680 	if (!bcs->tx_skb->len) {  in write_modem()
682 		gigaset_skb_sent(bcs, bcs->tx_skb); //FIXME also, when ret<0?  in write_modem()
685 			(unsigned long) bcs->tx_skb);  in write_modem()
686 		dev_kfree_skb_any(bcs->tx_skb);  in write_modem()
687 		bcs->tx_skb = NULL;  in write_modem()