diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 98ec861..c129a0e 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -1196,7 +1196,7 @@
 }
 
 static void
-receive_chars(struct uart_8250_port *up, int *status)
+receive_chars(struct uart_8250_port *up, unsigned int *status)
 {
 	struct tty_struct *tty = up->port.info->tty;
 	unsigned char ch, lsr = *status;