linux-kernel - Re: [PATCH -next v2] ASoC: Intel: Fix missing clk_disable_unprepare() on err in platform_clock

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Date:   Tue, 19 Jul 2022 09:24:55 -0500
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     Zhang Zekun <zhangzekun11@...wei.com>, cezary.rojewski@...el.com,
        liam.r.girdwood@...ux.intel.com, peter.ujfalusi@...ux.intel.com,
        yung-chuan.liao@...ux.intel.com, ranjani.sridharan@...ux.intel.com,
        kai.vehmanen@...ux.intel.com,
        ALSA Development Mailing List <alsa-devel@...a-project.org>,
        Mark Brown <broonie@...nel.org>, Takashi Iwai <tiwai@...e.com>,
        Hans de Goede <hdegoede@...hat.com>
Cc:     linux-kernel@...r.kernel.org, xuqiang36@...wei.com
Subject: Re: [PATCH -next v2] ASoC: Intel: Fix missing clk_disable_unprepare()
 on err in platform_clock_control()



On 7/18/22 20:36, Zhang Zekun wrote:
> Fix the missing clk_disable_unprepare() before return
> from platform_clock_control() in error handling path.
> 
> Fixes: 9a87fc1e0619 ("ASoC: Intel: bytcr_wm5102: Add machine driver for BYT/WM5102")
> Signed-off-by: Zhang Zekun <zhangzekun11@...wei.com>
> ---
>  sound/soc/intel/boards/bytcr_wm5102.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/sound/soc/intel/boards/bytcr_wm5102.c b/sound/soc/intel/boards/bytcr_wm5102.c
> index 45a6805787f5..3e3cdee4b1ce 100644
> --- a/sound/soc/intel/boards/bytcr_wm5102.c
> +++ b/sound/soc/intel/boards/bytcr_wm5102.c
> @@ -111,6 +111,7 @@ static int platform_clock_control(struct snd_soc_dapm_widget *w,
>  		ret = byt_wm5102_prepare_and_enable_pll1(codec_dai, 48000);
>  		if (ret) {
>  			dev_err(card->dev, "Error setting codec sysclk: %d\n", ret);
> +			clk_disable_unprepare(priv->mclk);

This change looks legit to me, but you want to CC: maintainers (Mark
Brown, Takashi Iwai), use the alsa-devel mailing list and CC: the
initial contributor Hans de Goede.

>  			return ret;
>  		}
>  	} else {