Re: pppd oopses current linu's git tree on disconnect

[Alan Cox]

On Maw, 2006-01-24 at 17:44 -0600, Paul Fulghum wrote:
> But if space == 0 then tty->buf.tail could be NULL
> Touching tb could oops. I think you already do a similar
> check in tty_insert_flip_string() etc.

Might be worth using unlikely() hints there. I'd not considered the NULL
case.

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