unsigned long flags; 
unsigned int actual_length = urb->actual_length; 
static void pl2303_read_int_callback (struct urb *urb, struct pt_regs *regs){	struct usb_serial_port *port = (struct usb_serial_port *) urb->context;	struct pl2303_private *priv = usb_get_serial_port_data(port);	unsigned char *data = urb->transfer_buffer;	unsigned long flags;	int status;	u8 uart_state;	dbg("%s (%d)", __FUNCTION__, port->number);	switch (urb->status) {	case 0:		/* success */		break;	case -ECONNRESET:	case -ENOENT:	case -ESHUTDOWN:		/* this urb is terminated, clean up */		dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);		return;	default:		dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);		goto exit;	}	usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, urb->transfer_buffer);	if (urb->actual_length < UART_STATE)		goto exit;	/* Save off the uart status for others to look at */	uart_state = data[UART_STATE];	spin_lock_irqsave(&priv->lock, flags);	uart_state |= (priv->line_status & UART_STATE_TRANSIENT_MASK);	priv->line_status = uart_state;	spin_unlock_irqrestore(&priv->lock, flags);		exit:	status = usb_submit_urb (urb, GFP_ATOMIC);	if (status)		dev_err(&urb->dev->dev, "%s - usb_submit_urb failed with result %d\n",			__FUNCTION__, status);}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/97bb13ec5bc156352cca8af90080597e04299a73/pl2303.c/clean/drivers/usb/serial/pl2303.c