diff --git a/drivers/tty/serial/8250/8250_exar.c b/drivers/tty/serial/8250/8250_exar.c
index 2f9813429278..aadcce3bb001 100644
--- a/drivers/tty/serial/8250/8250_exar.c
+++ b/drivers/tty/serial/8250/8250_exar.c
@@ -200,9 +200,9 @@ static int xr17v35x_startup(struct uart_port *port)
 	 *
 	 * Synchronize UART_IER access against the console.
 	 */
-	spin_lock_irq(&port->lock);
+	uart_port_lock_irq(port);
 	serial_port_out(port, UART_IER, 0);
-	spin_unlock_irq(&port->lock);
+	uart_port_unlock_irq(port);
 
 	return serial8250_do_startup(port);
 }