[PATCH 1/1] gpu: drm: omapdrm: dss-of: add missing of_node_put after calling of_parse_phandle

Daniel Vetter daniel at ffwll.ch
Tue Jul 12 13:04:24 UTC 2016


On Mon, Jul 04, 2016 at 05:08:55PM +0800, Peter Chen wrote:
> of_node_put needs to be called when the device node which is got
> from of_parse_phandle has finished using.
> 
> Signed-off-by: Peter Chen <peter.chen at nxp.com>

Just an aside: When you do the same bugfix for multiple places it's good
practice to submit it as one series (and cc everyone involved). Increases
the odds that someone is in a good mood and reviews them all, instead of
just the one affecting their own driver.
-Daniel

> ---
>  drivers/gpu/drm/omapdrm/dss/dss-of.c | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/omapdrm/dss/dss-of.c b/drivers/gpu/drm/omapdrm/dss/dss-of.c
> index bf407b6..1ee6e5e 100644
> --- a/drivers/gpu/drm/omapdrm/dss/dss-of.c
> +++ b/drivers/gpu/drm/omapdrm/dss/dss-of.c
> @@ -126,15 +126,16 @@ u32 dss_of_port_get_port_number(struct device_node *port)
>  
>  static struct device_node *omapdss_of_get_remote_port(const struct device_node *node)
>  {
> -	struct device_node *np;
> +	struct device_node *np, *np_parent;
>  
>  	np = of_parse_phandle(node, "remote-endpoint", 0);
>  	if (!np)
>  		return NULL;
>  
> -	np = of_get_next_parent(np);
> +	np_parent = of_get_next_parent(np);
> +	of_node_put(np);
>  
> -	return np;
> +	return np_parent;
>  }
>  
>  struct device_node *
> -- 
> 1.9.1
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch


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