[PATCH] pSeries hvsi char driver janitorial cleanup.

[Alan Cox]

Ar Iau, 2006-08-03 am 14:36 -0500, ysgrifennodd Linas Vepstas:
> Andrew, 
> Please apply.
> 
> A set of tty line discipline cleanup patches were introduced 
> before the dawn of time, in kernel version 2.4.21. This patch
> performs that cleanup for the hvsi driver.

Actually its also a bug fix, tty->ldisc should be locked by refcounting
and the helpers do this for you.

Acked-by: Alan Cox <alan at redhat.com>