diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index c3d43eb..9539d74 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -271,7 +271,7 @@
 	void (*set_ldisc)(struct tty_struct *tty);
 	void (*wait_until_sent)(struct tty_struct *tty, int timeout);
 	void (*send_xchar)(struct tty_struct *tty, char ch);
-	int (*tiocmget)(struct tty_struct *tty, struct file *file);
+	int (*tiocmget)(struct tty_struct *tty);
 	int (*tiocmset)(struct tty_struct *tty, struct file *file,
 			unsigned int set, unsigned int clear);
 	int (*resize)(struct tty_struct *tty, struct winsize *ws);