diff --git a/drivers/tty/serial/8250.c b/drivers/tty/serial/8250.c
index 9c0396fa391534a97520b6f34134b70bab5a0c7f..f1c4f45754263fd412198138017799f4cde77106 100644
--- a/drivers/tty/serial/8250.c
+++ b/drivers/tty/serial/8250.c
@@ -1740,11 +1740,8 @@ static void serial_unlink_irq_chain(struct uart_8250_port *up)
 static void serial8250_timeout(unsigned long data)
 {
 	struct uart_8250_port *up = (struct uart_8250_port *)data;
-	unsigned int iir;
 
-	iir = serial_in(up, UART_IIR);
-	if (!(iir & UART_IIR_NO_INT))
-		serial8250_handle_port(up);
+	up->port.handle_irq(&up->port);
 	mod_timer(&up->timer, jiffies + uart_poll_timeout(&up->port));
 }