Re: [PATCH 1/2] Introduce tty_unregister_ldisc()

[Christoph Hellwig]

On Tue, May 31, 2005 at 05:28:11PM -0500, Paul Fulghum wrote:
> This patch is wrong. Please do not apply.
> 
> An unmodified ldisc driver (externally maintained) will continue to call
> tty_register_ldisc with NULL, but the new behavior will be to set the
> ldisc pointer to NULL but have LDISC_FLAG_DEFINED set.
> 
> If you feel it is absolutely necessary to add this new function
> for cosmetic reasons, then leave the old behavior in place
> and make tty_unregister_ldisc a wrapper to tty_register_ldisc
> that uses a NULL pointer.

Nah, we don't want to allow staying out of tree folks out of sync.  Adding
a BUG_ON for ldisk beeing NULL is much more reasoable.

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