tty: now phase out the ioctl file pointer for good

Only oddities here are a couple of drivers that bogusly called the ldisc
helpers instead of returning -ENOIOCTLCMD. Fix the bug and the rest goes
away.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c
index 36c1088..3780da8 100644
--- a/drivers/char/rocket.c
+++ b/drivers/char/rocket.c
@@ -1326,7 +1326,7 @@
 }
 
 /*  IOCTL call handler into the driver */
-static int rp_ioctl(struct tty_struct *tty, struct file *file,
+static int rp_ioctl(struct tty_struct *tty,
 		    unsigned int cmd, unsigned long arg)
 {
 	struct r_port *info = tty->driver_data;