if (port->write_urb->status != -EINPROGRESS) 
if (port->write_urb_busy) 
static int safe_write_room (struct usb_serial_port *port){	int room = 0;		// Default: no room	dbg ("%s", __FUNCTION__);	if (port->write_urb->status != -EINPROGRESS)		room = port->bulk_out_size - (safe ? 2 : 0);	if (room) {		dbg ("safe_write_room returns %d", room);	}	return (room);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/507ca9bc0476662f3463888d583864834eab1e11/safe_serial.c/clean/drivers/usb/serial/safe_serial.c