Re: [PATCH -next] drm/logicvc: add missing of_node_put() in logicvc_layers_init()

From: Paul Kocialkowski
Date: Fri Jun 24 2022 - 11:25:57 EST


Hi,

On Fri 24 Jun 22, 16:36, Paul Kocialkowski wrote:
> Hi Yang,
>
> On Tue 14 Jun 22, 19:21, Yang Yingliang wrote:
> > The of_node_put() need be called in error path in logicvc_layers_init().
> >
> > Fixes: efeeaefe9be5 ("drm: Add support for the LogiCVC display controller")
> > Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
> > Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
>
> Thanks for the fix!
>
> Acked-by: Paul Kocialkowski <paul.kocialkowski@xxxxxxxxxxx>

Adapted this after Julia's patch: Only the put on layers_node is required
on error condition.

Pushed to drm-misc-next, thanks!

Paul

> > ---
> > drivers/gpu/drm/logicvc/logicvc_layer.c | 5 ++++-
> > 1 file changed, 4 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/logicvc/logicvc_layer.c b/drivers/gpu/drm/logicvc/logicvc_layer.c
> > index bae1c7f99569..00a37563a6dc 100644
> > --- a/drivers/gpu/drm/logicvc/logicvc_layer.c
> > +++ b/drivers/gpu/drm/logicvc/logicvc_layer.c
> > @@ -610,8 +610,11 @@ int logicvc_layers_init(struct logicvc_drm *logicvc)
> > }
> >
> > ret = logicvc_layer_init(logicvc, layer_node, index);
> > - if (ret)
> > + if (ret) {
> > + of_node_put(layer_node);
> > + of_node_put(layers_node);
> > goto error;
> > + }
> >
> > of_node_put(layer_node);
> > }
> > --
> > 2.25.1
> >
>
> --
> Paul Kocialkowski, Bootlin
> Embedded Linux and kernel engineering
> https://bootlin.com



--
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com

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