linux-kernel - Re: [PATCH] Sound, 6fire: Don't leak firmware in error path

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Message-ID: <s5h1uzbz74w.wl%tiwai@suse.de>
Date:	Fri, 03 Jun 2011 09:49:51 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Jesper Juhl <jj@...osbits.net>
Cc:	linux-kernel@...r.kernel.org, alsa-devel@...a-project.org,
	Daniel Mack <zonque@...il.com>,
	Lucas De Marchi <lucas.demarchi@...fusion.mobi>,
	Torsten Schenk <torsten.schenk@...o.com>,
	Jaroslav Kysela <perex@...ex.cz>
Subject: Re: [PATCH] Sound, 6fire: Don't leak firmware in error path

At Mon, 30 May 2011 12:49:01 +0200 (CEST),
Jesper Juhl wrote:
> 
> One of the error paths in 
> sound/usb/6fire/firmware.c::usb6fire_fw_ezusb_upload() neglects to free 
> the memory allocated for the firmware before returning, thus leaking the 
> memory.
> 
> Signed-off-by: Jesper Juhl <jj@...osbits.net>

Applied now.  Thanks.


Takashi

> ---
>  firmware.c |    1 +
>  1 file changed, 1 insertion(+)
> 
>   patch against 3.0-rc1
>   compile tested only
> 
> diff --git a/sound/usb/6fire/firmware.c b/sound/usb/6fire/firmware.c
> index d47beff..a91719d 100644
> --- a/sound/usb/6fire/firmware.c
> +++ b/sound/usb/6fire/firmware.c
> @@ -227,6 +227,7 @@ static int usb6fire_fw_ezusb_upload(
>  	ret = usb6fire_fw_ihex_init(fw, rec);
>  	if (ret < 0) {
>  		kfree(rec);
> +		release_firmware(fw);
>  		snd_printk(KERN_ERR PREFIX "error validating ezusb "
>  				"firmware %s.\n", fwname);
>  		return ret;
> 
> 
> -- 
> Jesper Juhl <jj@...osbits.net>       http://www.chaosbits.net/
> Don't top-post http://www.catb.org/jargon/html/T/top-post.html
> Plain text mails only, please.
> 
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