linux-kernel - Re: [PATCH] pinctrl: add pinctrl_register

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Message-ID: <20150529161642.GC31081@xsjsorenbubuntu>
Date:	Fri, 29 May 2015 09:16:42 -0700
From:	Sören Brinkmann <soren.brinkmann@...inx.com>
To:	Masahiro Yamada <yamada.masahiro@...ionext.com>
CC:	<linux-gpio@...r.kernel.org>, Arnd Bergmann <arnd@...db.de>,
	Linus Walleij <linus.walleij@...aro.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] pinctrl: add pinctrl_register_reason() to return proper
 error code

On Fri, 2015-05-29 at 08:30PM +0900, Masahiro Yamada wrote:
> The pinctrl_register() just returns NULL on error, so the callers
> can not know the exact reason of the failure.
> 
> Some of the pinctrl drivers return -EINVAL, some -ENODEV, and some
> -ENOMEM on error of pinctrl_register() , although the error code
> might be different from the actual cause of the error.
> 
> This new function, pinctrl_register_reason(), helps the drivers get
> and return the appropriate error code.
> 
> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
> Suggested-by: Arnd Bergmann <arnd@...db.de>
Acked-by: Sören Brinkmann <soren.brinkmann@...inx.com>

	Sören
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