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Re: [PATCH] pinctrl: stm32: Modify error handling for pinctrl_register

From Linus Walleij <linus.walleij@linaro.org>
Newsgroups linux.kernel
Subject Re: [PATCH] pinctrl: stm32: Modify error handling for pinctrl_register
Date 2016-06-29 10:40 +0200
Message-ID <rPjcn-1RY-47@gated-at.bofh.it> (permalink)
References <rOFHY-1ok-33@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Mon, Jun 27, 2016 at 4:23 PM, Amitoj Kaur Chawla
<amitoj1606@gmail.com> wrote:

> pinctrl_register returns an ERR_PTR on error.
>
> The Coccinelle semantic patch used to make this change is as follows:
>
> @@
> expression e,e1,e2;
> @@
>
> e = pinctrl_register(...)
> ... when != e = e1
> if (
> -   e == NULL
> +   IS_ERR(e)
>    ) {
>      ...
>      return
> -      e2
> +      PTR_ERR(e)
>      ;
>      }
>
> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>

I already have a patch like this in my tree it seems.

But very nice that cocinelle is now finding this!

Yours,
Linus Walleij

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[PATCH] pinctrl: stm32: Modify error handling for pinctrl_register Amitoj Kaur Chawla <amitoj1606@gmail.com> - 2016-06-27 16:30 +0200
  Re: [PATCH] pinctrl: stm32: Modify error handling for pinctrl_register Linus Walleij <linus.walleij@linaro.org> - 2016-06-29 10:40 +0200

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