unsigned long flags; 
static unsigned int serial_txx9_get_mctrl(struct uart_port *port){	struct uart_txx9_port *up = (struct uart_txx9_port *)port;	unsigned long flags;	unsigned int ret;	spin_lock_irqsave(&up->port.lock, flags);	ret =  ((sio_in(up, TXX9_SIFLCR) & TXX9_SIFLCR_RTSSC) ? 0 : TIOCM_RTS)		| ((sio_in(up, TXX9_SICISR) & TXX9_SICISR_CTSS) ? 0 : TIOCM_CTS);	spin_unlock_irqrestore(&up->port.lock, flags);	return ret;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/c5f4644e6c8ba21666128603e4e92544d3cd740d/serial_txx9.c/buggy/drivers/serial/serial_txx9.c