316 	struct urb *in_urbs[N_IN_URB_HM];
418 static void sierra_release_urb(struct urb *urb)  in sierra_release_urb()  argument
420 	if (urb) {  in sierra_release_urb()
421 		kfree(urb->transfer_buffer);  in sierra_release_urb()
422 		usb_free_urb(urb);  in sierra_release_urb()
426 static void sierra_outdat_callback(struct urb *urb)  in sierra_outdat_callback()  argument
428 	struct usb_serial_port *port = urb->context;  in sierra_outdat_callback()
431 	int status = urb->status;  in sierra_outdat_callback()
436 	kfree(urb->transfer_buffer);  in sierra_outdat_callback()
461 	struct urb *urb;  in sierra_write()  local
500 	urb = usb_alloc_urb(0, GFP_ATOMIC);  in sierra_write()
501 	if (!urb) {  in sierra_write()
510 	usb_fill_bulk_urb(urb, serial->dev,  in sierra_write()
516 	urb->transfer_flags |= URB_ZERO_PACKET;  in sierra_write()
521 		usb_anchor_urb(urb, &portdata->delayed);  in sierra_write()
525 		usb_anchor_urb(urb, &portdata->active);  in sierra_write()
528 	retval = usb_submit_urb(urb, GFP_ATOMIC);  in sierra_write()
530 		usb_unanchor_urb(urb);  in sierra_write()
543 	usb_free_urb(urb);  in sierra_write()
547 	usb_free_urb(urb);  in sierra_write()
561 static void sierra_indat_callback(struct urb *urb)  in sierra_indat_callback()  argument
566 	unsigned char *data = urb->transfer_buffer;  in sierra_indat_callback()
567 	int status = urb->status;  in sierra_indat_callback()
569 	endpoint = usb_pipeendpoint(urb->pipe);  in sierra_indat_callback()
570 	port = urb->context;  in sierra_indat_callback()
576 		if (urb->actual_length) {  in sierra_indat_callback()
578 				urb->actual_length);  in sierra_indat_callback()
582 					      urb->actual_length, data);  in sierra_indat_callback()
592 		err = usb_submit_urb(urb, GFP_ATOMIC);  in sierra_indat_callback()
599 static void sierra_instat_callback(struct urb *urb)  in sierra_instat_callback()  argument
602 	int status = urb->status;  in sierra_instat_callback()
603 	struct usb_serial_port *port =  urb->context;  in sierra_instat_callback()
608 		urb, port, portdata);  in sierra_instat_callback()
612 				(struct usb_ctrlrequest *)urb->transfer_buffer;  in sierra_instat_callback()
623 					urb->transfer_buffer +  in sierra_instat_callback()
648 		err = usb_submit_urb(urb, GFP_ATOMIC);  in sierra_instat_callback()
707 	struct urb *urb;  in sierra_submit_rx_urbs()  local
712 		urb = portdata->in_urbs[i];  in sierra_submit_rx_urbs()
713 		if (!urb)  in sierra_submit_rx_urbs()
715 		err = usb_submit_urb(urb, mem_flags);  in sierra_submit_rx_urbs()
738 static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint,  in sierra_setup_urb()
743 	struct urb	*urb;  in sierra_setup_urb()  local
746 	urb = usb_alloc_urb(0, mem_flags);  in sierra_setup_urb()
747 	if (!urb)  in sierra_setup_urb()
753 		usb_fill_bulk_urb(urb, serial->dev,  in sierra_setup_urb()
758 				dir == USB_DIR_IN ? 'i' : 'o', urb, buf);  in sierra_setup_urb()
760 		sierra_release_urb(urb);  in sierra_setup_urb()
761 		urb = NULL;  in sierra_setup_urb()
764 	return urb;  in sierra_setup_urb()
773 	struct urb *urb;  in sierra_close()  local
787 		urb = usb_get_from_anchor(&portdata->delayed);  in sierra_close()
788 		if (!urb)  in sierra_close()
790 		kfree(urb->transfer_buffer);  in sierra_close()
791 		usb_free_urb(urb);  in sierra_close()
817 	struct urb *urb;  in sierra_open()  local
823 		urb = sierra_setup_urb(serial, endpoint, USB_DIR_IN, port,  in sierra_open()
826 		portdata->in_urbs[i] = urb;  in sierra_open()
996 	struct urb *urb;  in sierra_submit_delayed_urbs()  local
1003 		urb = usb_get_from_anchor(&portdata->delayed);  in sierra_submit_delayed_urbs()
1004 		if (!urb)  in sierra_submit_delayed_urbs()
1007 		usb_anchor_urb(urb, &portdata->active);  in sierra_submit_delayed_urbs()
1009 		err = usb_submit_urb(urb, GFP_ATOMIC);  in sierra_submit_delayed_urbs()
1015 			usb_unanchor_urb(urb);  in sierra_submit_delayed_urbs()
1016 			kfree(urb->transfer_buffer);  in sierra_submit_delayed_urbs()
1017 			usb_free_urb(urb);  in sierra_submit_delayed_urbs()