Re: [PATCH 5/9] drm/tegra: dc: add missing of_node_put

From: Thierry Reding
Date: Mon Dec 14 2015 - 08:35:48 EST


On Sat, Oct 24, 2015 at 04:42:31PM +0200, Julia Lawall wrote:
> for_each_matching_node performs an of_node_get on each iteration, so
> a break out of the loop requires an of_node_put.
>
> A simplified version of the semantic patch that fixes this problem is as
> follows (http://coccinelle.lip6.fr):
>
> // <smpl>
> @@
> local idexpression n;
> expression e;
> @@
>
> for_each_matching_node(n,...) {
> ...
> (
> of_node_put(n);
> |
> e = n
> |
> + of_node_put(n);
> ? break;
> )
> ...
> }
> ... when != n
> // </smpl>
>
> Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx>
>
> ---
> drivers/gpu/drm/tegra/dc.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)

Applied, thanks.

Thierry

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