diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index c66bb44..006617e 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -2486,7 +2486,7 @@
 static int
 serial8250_verify_port(struct uart_port *port, struct serial_struct *ser)
 {
-	if (ser->irq >= NR_IRQS || ser->irq < 0 ||
+	if (ser->irq >= nr_irqs || ser->irq < 0 ||
 	    ser->baud_base < 9600 || ser->type < PORT_UNKNOWN ||
 	    ser->type >= ARRAY_SIZE(uart_config) || ser->type == PORT_CIRRUS ||
 	    ser->type == PORT_STARTECH)