diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index 2849f8c..2744709 100644
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -101,7 +101,7 @@
 static void mct_u232_set_termios(struct tty_struct *tty,
 			struct usb_serial_port *port, struct ktermios *old);
 static void mct_u232_break_ctl(struct tty_struct *tty, int break_state);
-static int  mct_u232_tiocmget(struct tty_struct *tty, struct file *file);
+static int  mct_u232_tiocmget(struct tty_struct *tty);
 static int  mct_u232_tiocmset(struct tty_struct *tty, struct file *file,
 			unsigned int set, unsigned int clear);
 static void mct_u232_throttle(struct tty_struct *tty);
@@ -762,7 +762,7 @@
 } /* mct_u232_break_ctl */
 
 
-static int mct_u232_tiocmget(struct tty_struct *tty, struct file *file)
+static int mct_u232_tiocmget(struct tty_struct *tty)
 {
 	struct usb_serial_port *port = tty->driver_data;
 	struct mct_u232_private *priv = usb_get_serial_port_data(port);