[alsa-devel] ASoC: wm8962: NULL pdata pointer

[varun Yadav]

Hi Shwan,

Do you have spk-mono in imx6q-sabresd.dts file, if yes then remove it.

Regards,
Varun



On Thu, Jul 4, 2013 at 11:59 AM, Shawn Guo <shawn.guo at linaro.org> wrote:

> Mark,
>
> I'm running next-20130703 and seeing the following NULL pointer bug.
>
> Unable to handle kernel NULL pointer dereference at virtual address
> 00000004
> pgd = 80004000
> [00000004] *pgd=00000000
> Internal error: Oops: 5 [#1] SMP ARM
> Modules linked in:
> CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.10.0-next-20130703 #6
> task: bf870000 ti: bf874000 task.ti: bf874000
> PC is at wm8962_probe+0x140/0x6b4
> ...
>
> It seems to me that it's caused by a merge error in 384b834.  And the
> change below can remove the problem.
>
> Shawn
>
> ---8<----
>
> diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
> index b1dc7d4..e2de9ec 100644
> --- a/sound/soc/codecs/wm8962.c
> +++ b/sound/soc/codecs/wm8962.c
> @@ -3377,7 +3377,7 @@ static int wm8962_probe(struct snd_soc_codec *codec)
>  {
>         int ret;
>         struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
> -       struct wm8962_pdata *pdata = dev_get_platdata(codec->dev);
> +       struct wm8962_pdata *pdata = &wm8962->pdata;
>         int i, trigger, irq_pol;
>         bool dmicclk, dmicdat;
>
>
>
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