linux-kernel - Re: [PATCH 2/3] ASoC: apple: mca: Start new platform driver

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Date:   Tue, 09 Aug 2022 10:32:45 +0200
From:   Philipp Zabel <p.zabel@...gutronix.de>
To:     Martin Povišer <povik+lin@...ebit.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
Cc:     asahi@...ts.linux.dev, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] ASoC: apple: mca: Start new platform driver

Hi Martin,

On Di, 2022-08-09 at 00:41 +0200, Martin Povišer wrote:
> +	mca->rstc = devm_reset_control_get_shared(&pdev->dev, NULL);
> +	if (IS_ERR(mca->rstc)) {
> +		dev_dbg(&pdev->dev, "couldn't obtain reset control: %pe\n", mca->rstc);
> +		mca->rstc = NULL;
> +	}

Please don't ignore errors, this could be -ENOMEM.

For optional resets, use devm_reset_control_get_optional_shared(),
which returns NULL if there is no resets property in the device tree.

regards
Philipp