linux-kernel - Re: [PATCH] soc: mediatek: fix missing clk_disable_unprepare() on err in svs

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Date:   Wed, 22 Jun 2022 16:02:56 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Peng Wu <wupeng58@...wei.com>
Cc:     linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        liwei391@...wei.com
Subject: Re: [PATCH] soc: mediatek: fix missing clk_disable_unprepare() on err
 in svs_resume()



On 21/06/2022 13:46, Peng Wu wrote:
> Fix the missing clk_disable_unprepare() before return
> from svs_resume() in the error handling case.
> 
> Signed-off-by: Peng Wu <wupeng58@...wei.com>
> Reported-by: Hulk Robot <hulkci@...wei.com>
> ---
>   drivers/soc/mediatek/mtk-svs.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/soc/mediatek/mtk-svs.c b/drivers/soc/mediatek/mtk-svs.c
> index 606a00a2e57d..1b5c297aaec5 100644
> --- a/drivers/soc/mediatek/mtk-svs.c
> +++ b/drivers/soc/mediatek/mtk-svs.c
> @@ -1525,6 +1525,7 @@ static int svs_resume(struct device *dev)
>   
>   	ret = reset_control_deassert(svsp->rst);
>   	if (ret) {
> +		clk_disable_unprepare(svsp->main_clk);

Same holds for the error path of svs_init02(), correct?

Regards,
Matthias

>   		dev_err(svsp->dev, "cannot deassert reset %d\n", ret);
>   		return ret;
>   	}