Re: [RESEND PATCH] soc: amlogic: add missing of_node_put()

From: Neil Armstrong
Date: Mon Feb 04 2019 - 04:30:47 EST


Hi,

On 03/02/2019 06:41, wen yang wrote:
> The call to of_parse_phandle returns a node pointer with refcount
> incremented thus it must be explicitly decremented here after the last
> usage.
>

Missing a Fixes tag.

> Signed-off-by: Wen Yang <yellowriver2010@xxxxxxxxxxx>
> Cc: Kevin Hilman <khilman@xxxxxxxxxxxx>
> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> Cc: linux-amlogic@xxxxxxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> ---
> drivers/soc/amlogic/meson-canvas.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/soc/amlogic/meson-canvas.c b/drivers/soc/amlogic/meson-canvas.c
> index fce33ca..87a6c6e 100644
> --- a/drivers/soc/amlogic/meson-canvas.c
> +++ b/drivers/soc/amlogic/meson-canvas.c
> @@ -57,9 +57,12 @@ struct meson_canvas *meson_canvas_get(struct device *dev)
> return ERR_PTR(-ENODEV);
>
> canvas_pdev = of_find_device_by_node(canvas_node);
> - if (!canvas_pdev)
> + if (!canvas_pdev) {
> + of_node_put(canvas_node);
> return ERR_PTR(-EPROBE_DEFER);
> + }
>
> + of_node_put(canvas_node);
> return dev_get_drvdata(&canvas_pdev->dev);
> }
> EXPORT_SYMBOL_GPL(meson_canvas_get);
>

Apart the missing Fixes tag :

Reviewed-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>

Neil