linux-kernel - RE: [PATCH 1/4] ASoC: simple-card: Fix device node locks

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Date:	Mon, 24 Feb 2014 02:17:00 +0000
From:	"Li.Xiubo@...escale.com" <Li.Xiubo@...escale.com>
To:	Jean-Francois Moine <moinejf@...e.fr>,
	Mark Brown <broonie@...nel.org>
CC:	"alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
	"Kuninori Morimoto" <kuninori.morimoto.gx@...esas.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: RE: [PATCH 1/4] ASoC: simple-card: Fix device node locks

> @@ -169,22 +164,26 @@ static int asoc_simple_card_parse_of(struct device_node
> *node,
>  	/* CPU sub-node */
>  	ret = -EINVAL;
>  	np = of_get_child_by_name(node, "simple-audio-card,cpu");
> -	if (np)
> +	if (np) {
>  		ret = asoc_simple_card_sub_parse_of(np, priv->daifmt,
>  						  &priv->cpu_dai,
>  						  &dai_link->cpu_of_node,
>  						  &dai_link->cpu_dai_name);
> +		of_node_put(np);

Does the of_node_put(np) is really needed here ?


> +	}
>  	if (ret < 0)
>  		return ret;
> 
>  	/* CODEC sub-node */
>  	ret = -EINVAL;
>  	np = of_get_child_by_name(node, "simple-audio-card,codec");
> -	if (np)
> +	if (np) {
>  		ret = asoc_simple_card_sub_parse_of(np, priv->daifmt,
>  						  &priv->codec_dai,
>  						  &dai_link->codec_of_node,
>  						  &dai_link->codec_dai_name);
> +		of_node_put(np);

The same here...

> +	}
>  	if (ret < 0)
>  		return ret;
> 

Thanks,

--
Best Regards,
Xiubo

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