[PATCH 2/3] drm/mediatek: ovl_adaptor: add missing of_node_put()

[CK Hu (胡俊光)]

Hi, Javier:

On Mon, 2024-06-24 at 18:43 +0200, Javier Carrasco wrote:
>  	 
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>  Error paths that exit for_each_child_of_node() need to call
> of_node_put() to decerement the child refcount and avoid memory leaks.
> 
> Add the missing of_node_put().

Reviewed-by: CK Hu <ck.hu at mediatek.com>

> 
> Cc: stable at vger.kernel.org
> Fixes: 453c3364632a ("drm/mediatek: Add ovl_adaptor support for MT8195")
> Signed-off-by: Javier Carrasco <javier.carrasco.cruz at gmail.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> index 1418992311c4..3faf26a55e77 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> @@ -522,8 +522,10 @@ static int ovl_adaptor_comp_init(struct device *dev, struct component_match **ma
>  }
>  
>  comp_pdev = of_find_device_by_node(node);
> -if (!comp_pdev)
> +if (!comp_pdev) {
> +of_node_put(node);
>  return -EPROBE_DEFER;
> +}
>  
>  priv->ovl_adaptor_comp[id] = &comp_pdev->dev;
>  
> 
> -- 
> 2.40.1
> 
>