linux-kernel - Re: [PATCH 1/12] ad1836: fix a memory leak if another ad1836 is registered

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Date:	Tue, 20 Jul 2010 18:31:43 +0800
From:	Barry Song <21cnbao@...il.com>
To:	Axel Lin <axel.lin@...il.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Liam Girdwood <lrg@...mlogic.co.uk>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de>,
	Barry Song <Barry.Song@...log.com>, Tejun Heo <tj@...nel.org>,
	alsa-devel@...a-project.org
Subject: Re: [PATCH 1/12] ad1836: fix a memory leak if another ad1836 is 
	registered

On Thu, Jul 15, 2010 at 10:50 AM, Axel Lin <axel.lin@...il.com> wrote:
> ad1836 is allocated in ad1836_spi_probe() but is not freed if ad1836_register()
> return -EINVAL (if another ad1836 is registered).
>
> Signed-off-by: Axel Lin <axel.lin@...il.com>

Acked-by: Barry Song <21cnbao@...il.com>

> ---
>  sound/soc/codecs/ad1836.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/sound/soc/codecs/ad1836.c b/sound/soc/codecs/ad1836.c
> index 2175384..a01006c 100644
> --- a/sound/soc/codecs/ad1836.c
> +++ b/sound/soc/codecs/ad1836.c
> @@ -272,6 +272,7 @@ static int ad1836_register(struct ad1836_priv *ad1836)
>
>        if (ad1836_codec) {
>                dev_err(codec->dev, "Another ad1836 is registered\n");
> +               kfree(ad1836);
>                return -EINVAL;
>        }
>
> --
> 1.5.4.3
>
>
>
> --
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