linux-kernel - Re: [PATCH] ASoC: imx-audmix: register the card on a proper dev

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Date:   Tue, 27 Aug 2019 07:44:20 +0000
From:   Daniel Baluta <daniel.baluta@....com>
To:     "timur@...nel.org" <timur@...nel.org>,
        "Xiubo.Lee@...il.com" <Xiubo.Lee@...il.com>,
        "nicoleotsuka@...il.com" <nicoleotsuka@...il.com>,
        "festevam@...il.com" <festevam@...il.com>,
        "broonie@...nel.org" <broonie@...nel.org>,
        "tiwai@...e.com" <tiwai@...e.com>,
        "lgirdwood@...il.com" <lgirdwood@...il.com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "S.j. Wang" <shengjiu.wang@....com>,
        Viorel Suman <viorel.suman@....com>,
        "perex@...ex.cz" <perex@...ex.cz>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>
CC:     "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        dl-linux-imx <linux-imx@....com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] ASoC: imx-audmix: register the card on a proper dev

On Tue, 2019-08-27 at 11:55 -0400, Shengjiu Wang wrote:
> This platform device is registered from "fsl_audmix", which is
> its parent device. If use pdev->dev.parent for the priv->card.dev,
> the value set by dev_set_drvdata in parent device will be covered
> by the value in child device.
> 
> Fixes: b86ef5367761 ("ASoC: fsl: Add Audio Mixer machine driver")
> Signed-off-by: Viorel Suman <viorel.suman@....com>
> Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>

Reviewed-by: Daniel Baluta <daniel.baluta@....com>

Thanks Shengjiu for the fix!

> ---
>  sound/soc/fsl/imx-audmix.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/sound/soc/fsl/imx-audmix.c b/sound/soc/fsl/imx-audmix.c
> index 9e1cb18859ce..71590ca6394b 100644
> --- a/sound/soc/fsl/imx-audmix.c
> +++ b/sound/soc/fsl/imx-audmix.c
> @@ -325,14 +325,14 @@ static int imx_audmix_probe(struct
> platform_device *pdev)
>  	priv->card.num_configs = priv->num_dai_conf;
>  	priv->card.dapm_routes = priv->dapm_routes;
>  	priv->card.num_dapm_routes = priv->num_dapm_routes;
> -	priv->card.dev = pdev->dev.parent;
> +	priv->card.dev = &pdev->dev;
>  	priv->card.owner = THIS_MODULE;
>  	priv->card.name = "imx-audmix";
>  
>  	platform_set_drvdata(pdev, &priv->card);
>  	snd_soc_card_set_drvdata(&priv->card, priv);
>  
> -	ret = devm_snd_soc_register_card(pdev->dev.parent, &priv-
> >card);
> +	ret = devm_snd_soc_register_card(&pdev->dev, &priv->card);
>  	if (ret) {
>  		dev_err(&pdev->dev, "snd_soc_register_card failed\n");
>  		return ret;