linux-kernel - Re: [PATCH] ASoC: amd: add missed checks for clk

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Date:   Thu, 3 Dec 2020 14:43:56 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Chuhong Yuan <hslester96@...il.com>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Agrawal Akshu <Akshu.Agrawal@....com>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ASoC: amd: add missed checks for clk_get()

On Thu, Dec 03, 2020 at 10:31:16PM +0800, Chuhong Yuan wrote:

>  	da7219_dai_wclk = clk_get(component->dev, "da7219-dai-wclk");
> +	if (IS_ERR(da7219_dai_wclk))
> +		return PTR_ERR(da7219_dai_wclk);
> +
>  	da7219_dai_bclk = clk_get(component->dev, "da7219-dai-bclk");
> +	if (IS_ERR(da7219_dai_bclk))
> +		return PTR_ERR(da7219_dai_bclk);

This is also buggy - instead of ignoring the errors (which is an issue)
we now leak the wclk if the bclk fails.  Probably should convert to devm
as well.

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