linux-kernel - Re: [PATCH 10/11] ASoC: rsnd: add missing of_node

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Message-ID: <874jk55heh.wl-kuninori.morimoto.gx@renesas.com>
Date:   Fri, 8 Sep 2023 06:05:26 +0000
From:   Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
To:     Julia Lawall <Julia.Lawall@...ia.fr>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        kernel-janitors@...r.kernel.org, Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 10/11] ASoC: rsnd: add missing of_node_put


Hi Julia

Thank you for the patch

> for_each_child_of_node performs an of_node_get on each
> iteration, so a break out of the loop requires an
> of_node_put.
> 
> This was done using the Coccinelle semantic patch
> iterators/for_each_child.cocci
> 
> Signed-off-by: Julia Lawall <Julia.Lawall@...ia.fr>
> 
> ---
>  sound/soc/sh/rcar/core.c |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff -u -p a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
> --- a/sound/soc/sh/rcar/core.c
> +++ b/sound/soc/sh/rcar/core.c
> @@ -1303,6 +1303,7 @@ audio_graph:
>  		if (i >= RSND_MAX_COMPONENT) {
>  			dev_info(dev, "reach to max component\n");
>  			of_node_put(node);
> +			of_node_put(ports);
>  			break;
>  		}
>  	}

Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>

I noticed that existing "of_node_put(node)" itself is not needed.
We can remove it, and I will post the patch next week.


Thank you for your help !!

Best regards
---
Kuninori Morimoto