Message-ID: <55AB54CF.20609@rock-chips.com>
Date: Sun, 19 Jul 2015 15:42:07 +0800
From: Xing Zheng <zhengxing@rock-chips.com>
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To: Mark Brown <broonie@kernel.org>
CC: dgreid@chromium.org, dianders@chromium.org, heiko@sntech.de,
        sonnyrao@chromium.org, linux-rockchip@lists.infradead.org,
        Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
        Mark Rutland <mark.rutland@arm.com>,
        Ian Campbell <ijc+devicetree@hellion.org.uk>,
        Kumar Gala <galak@codeaurora.org>, Liam Girdwood <lgirdwood@gmail.com>,
        Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.de>,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org
Subject: Re: [PATCH v2 1/2] ASoC: rockchip: Add machine driver for max98090
 codec
References: <1437196124-32655-1-git-send-email-zhengxing@rock-chips.com> <1437196124-32655-2-git-send-email-zhengxing@rock-chips.com> <20150718091608.GW11162@sirena.org.uk>
In-Reply-To: <20150718091608.GW11162@sirena.org.uk>
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On 2015年07月18日 17:16, Mark Brown wrote:
> On Sat, Jul 18, 2015 at 01:08:43PM +0800, Xing Zheng wrote:
>
>> +	ret = devm_snd_soc_register_card(&pdev->dev, card);
>> +	if (ret) {
>> +		dev_err(&pdev->dev,
>> +			"Soc register card failed %d\n", ret);
>> +		return ret;
>> +	}
>> +
>> +	return ret;
>> +}
>> +
>> +static int snd_rk_mc_remove(struct platform_device *pdev)
>> +{
>> +	struct snd_soc_card *soc_card = platform_get_drvdata(pdev);
>> +
>> +	snd_soc_unregister_card(soc_card);
> The point with using devm_snd_soc_register_card() is that you don't need
> to manually unregister the card - devm_ ensures that the card is freed.
Got it. Thank you.

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