Remove bogons from the iSeries console

The iSeries driver calls into the n_tty ldisc code directly for some
bizarre reason. I previously tagged this with a query but this actually
does need fixing as n_tty methods when you have a different ldisc set are
not a good thing to call.

In n_tty mode this change should have no effect, the core tty layer has
always called the ldisc ioctl method *anyway* and will call the one for
the right ldisc.

Signed-off-by: Alan Cox <[e-mail]>
Acked-by: Stephen Rothwell <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/char/viocons.c

···
 	case KDSKBLED:
 		return 0;
 	}
-	/* FIXME: WTF is this being called for ??? */
-	lock_kernel();
-	ret =  n_tty_ioctl(tty, file, cmd, arg);
-	unlock_kernel();
 	return ret;
 }