diff --git a/drivers/staging/serqt_usb2/serqt_usb2.c b/drivers/staging/serqt_usb2/serqt_usb2.c
index 0fdf8c6dc648..52af44cfbe83 100644
--- a/drivers/staging/serqt_usb2/serqt_usb2.c
+++ b/drivers/staging/serqt_usb2/serqt_usb2.c
@@ -874,7 +874,7 @@ static void qt_release(struct usb_serial *serial)
 }
 
 static int qt_open(struct tty_struct *tty,
-	    struct usb_serial_port *port, struct file *filp)
+		   struct usb_serial_port *port)
 {
 	struct usb_serial *serial;
 	struct quatech_port *quatech_port;