linux-kernel - Re: [PATCH 3/3] sound/pci: Eliminate use after free

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Date:	Sun, 04 Apr 2010 12:22:29 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Julia Lawall <julia@...u.dk>
Cc:	Jaroslav Kysela <perex@...ex.cz>, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH 3/3] sound/pci: Eliminate use after free

At Fri, 2 Apr 2010 14:47:59 +0200 (CEST),
Julia Lawall wrote:
> 
> From: Julia Lawall <julia@...u.dk>
> 
> Use the call to snd_card_free in the error handling code at the end of the
> function, as in the other error cases.
> 
> A simplified version of the semantic patch that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> expression E,E2;
> @@
> 
> snd_card_free(E)
> ...
> (
>   E = E2
> |
> * E
> )
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@...u.dk>

Applied now.  Thanks.


Takashi
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