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Re: [PATCH] pinctrl: Add missing of_node_put

From Linus Walleij <linus.walleij@linaro.org>
Newsgroups linux.kernel
Subject Re: [PATCH] pinctrl: Add missing of_node_put
Date 2016-06-29 10:10 +0200
Message-ID <rPiJk-1HZ-19@gated-at.bofh.it> (permalink)
References <rNz1U-8uF-25@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Fri, Jun 24, 2016 at 3:06 PM, Amitoj Kaur Chawla
<amitoj1606@gmail.com> wrote:

> of_find_node_by_name does an of_node_get on its return value,
> so an of_node_put is needed on this value before the corresponding
> variable goes out of scope.
>
> The Coccinelle semantic patch used to make this change is as follows:
> @@
> struct device_node *n;
> struct device_node *n1;
> statement S;
> identifier f;
> expression E;
> constant C;
> @@
>
> n = of_find_node_by_name(...)
> ...
> if (!n) S
> ... when != of_node_put(n)
>     when != n1 = f(n,...)
>     when != E = n
>     when any
>     when strict
> (
> + of_node_put(n);
>   return -C;
> |
>   of_node_put(n);
> |
>   n1 = f(n,...)
> |
>   E = n
> |
>   return ...;
> )
>
> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>

Patch applied.

Yours,
Linus Walleij

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[PATCH] pinctrl: Add missing of_node_put Amitoj Kaur Chawla <amitoj1606@gmail.com> - 2016-06-24 15:10 +0200
  Re: [PATCH] pinctrl: Add missing of_node_put Linus Walleij <linus.walleij@linaro.org> - 2016-06-29 10:10 +0200

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