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Groups > linux.kernel > #1256899
| From | Linus Walleij <linus.walleij@linaro.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 9/9] pinctrl: at91: add missing of_node_put |
| Date | 2015-10-27 17:20 +0100 |
| Message-ID | <qof8C-7mI-19@gated-at.bofh.it> (permalink) |
| References | <qn8sx-3q2-3@gated-at.bofh.it> <qn8sx-3q2-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Sat, Oct 24, 2015 at 4:42 PM, Julia Lawall <Julia.Lawall@lip6.fr> wrote:
> for_each_child_of_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>
> @@
> expression root,e;
> local idexpression child;
> @@
>
> for_each_child_of_node(root, child) {
> ... when != of_node_put(child)
> when != e = child
> (
> return child;
> |
> + of_node_put(child);
> ? return ...;
> )
> ...
> }
> // </smpl>
>
> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Patch applied with Ludovic's ACK.
Yours,
Linus Walleij
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[PATCH 9/9] pinctrl: at91: add missing of_node_put Julia Lawall <Julia.Lawall@lip6.fr> - 2015-10-24 17:00 +0200 Re: [PATCH 9/9] pinctrl: at91: add missing of_node_put Ludovic Desroches <ludovic.desroches@atmel.com> - 2015-10-26 11:00 +0100 Re: [PATCH 9/9] pinctrl: at91: add missing of_node_put Linus Walleij <linus.walleij@linaro.org> - 2015-10-27 17:20 +0100
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