tiocmset: kill the file pointer argument

Doing tiocmget was such fun we should do tiocmset as well for the same
reasons

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/serial/usb-wwan.h b/drivers/usb/serial/usb-wwan.h
index 8b68fc7..4d65f1c 100644
--- a/drivers/usb/serial/usb-wwan.h
+++ b/drivers/usb/serial/usb-wwan.h
@@ -16,7 +16,7 @@
 				 struct usb_serial_port *port,
 				 struct ktermios *old);
 extern int usb_wwan_tiocmget(struct tty_struct *tty);
-extern int usb_wwan_tiocmset(struct tty_struct *tty, struct file *file,
+extern int usb_wwan_tiocmset(struct tty_struct *tty,
 			     unsigned int set, unsigned int clear);
 extern int usb_wwan_ioctl(struct tty_struct *tty, struct file *file,
 			  unsigned int cmd, unsigned long arg);