linux-kernel - Re: [PATCH 2.6.20-rc3] TTY

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Message-ID: <Pine.LNX.4.64N.0701051559080.27059@attu4.cs.washington.edu>
Date:	Fri, 5 Jan 2007 16:00:36 -0800 (PST)
From:	David Rientjes <rientjes@...washington.edu>
To:	"Ahmed S. Darwish" <darwish.07@...il.com>
cc:	alan@...rguk.ukuu.org.uk, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2.6.20-rc3] TTY_IO code cleanups

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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