linux-kernel - Re: [PATCH 1/3] drm: logicvc: fix missing of_node_put() in for_each_child_of

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Message-ID: <Zwki0VC2hmSsguho@louis-chauvet-laptop>
Date: Fri, 11 Oct 2024 15:06:25 +0200
From: Louis Chauvet <louis.chauvet@...tlin.com>
To: Javier Carrasco <javier.carrasco.cruz@...il.com>
Cc: Paul Kocialkowski <paul.kocialkowski@...tlin.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Subject: Re: [PATCH 1/3] drm: logicvc: fix missing of_node_put() in
 for_each_child_of_node()

On 11/10/24 - 01:11, Javier Carrasco wrote:
> Early exits from the for_each_child_of_node() loop require explicit
> calls to of_node_put() for the child node.
> 
> Add the missing 'of_node_put(layer_node)' in the only error path.
> 
> Cc: stable@...r.kernel.org
> Fixes: efeeaefe9be5 ("drm: Add support for the LogiCVC display controller")
> Signed-off-by: Javier Carrasco <javier.carrasco.cruz@...il.com>

Reviewed-By: Louis Chauvet <louis.chauvet@...tlin.com>

> ---
>  drivers/gpu/drm/logicvc/logicvc_layer.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/logicvc/logicvc_layer.c b/drivers/gpu/drm/logicvc/logicvc_layer.c
> index 464000aea765..52dabacd42ee 100644
> --- a/drivers/gpu/drm/logicvc/logicvc_layer.c
> +++ b/drivers/gpu/drm/logicvc/logicvc_layer.c
> @@ -613,6 +613,7 @@ int logicvc_layers_init(struct logicvc_drm *logicvc)
>  
>  		ret = logicvc_layer_init(logicvc, layer_node, index);
>  		if (ret) {
> +			of_node_put(layer_node);
>  			of_node_put(layers_node);
>  			goto error;
>  		}
> 
> -- 
> 2.43.0
>