Re: [PATCH 2.6.20-rc3] TTY_IO code cleanups

From: David Rientjes
Date: Fri Jan 05 2007 - 19:00:56 EST


On Sat, 6 Jan 2007, Ahmed S. Darwish wrote:

> @@ -791,17 +790,15 @@ static int tty_ldisc_try(struct tty_struct *tty)
> {
> unsigned long flags;
> struct tty_ldisc *ld;
> - int ret = 0;
>
> spin_lock_irqsave(&tty_ldisc_lock, flags);
> ld = &tty->ldisc;
> - if(test_bit(TTY_LDISC, &tty->flags))
> - {
> + if(test_bit(TTY_LDISC, &tty->flags)) {
> ld->refcount++;
> - ret = 1;
> + return 1;
> }
> spin_unlock_irqrestore(&tty_ldisc_lock, flags);
> - return ret;
> + return 0;
> }
>
> /**

You leave tty_ldisk_lock locked.
-
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