linux-kernel - Re: [PATCH] gpio: gpio-kempld: Fix get

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Message-ID: <20150511130901.GB24321@roeck-us.net>
Date:	Mon, 11 May 2015 06:09:01 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	Michael Brunner <mibru@....de>
Cc:	linux-kernel@...r.kernel.org,
	Linus Walleij <linus.walleij@...aro.org>,
	Alexandre Courbot <gnurou@...il.com>,
	linux-gpio@...r.kernel.org,
	Jochen Henneberg <jh@...neberg-systemdesign.com>,
	Michael Brunner <michael.brunner@...tron.com>,
	Darren Hart <dvhart@...ux.intel.com>,
	Kevin Strasser <kevin.strasser@...ux.intel.com>
Subject: Re: [PATCH] gpio: gpio-kempld: Fix get_direction return value

On Mon, May 11, 2015 at 12:46:49PM +0200, Michael Brunner wrote:
> This patch fixes an inverted return value of the gpio get_direction
> function.
> 
> The wrong value causes the direction sysfs entry and GPIO debugfs file
> to indicate incorrect GPIO direction settings. In some cases it also
> prevents setting GPIO output values.
> 
> The problem is also present in all other stable kernel versions since
> linux-3.12.
> 
> Reported-by: Jochen Henneberg <jh@...neberg-systemdesign.com>
> Signed-off-by: Michael Brunner <michael.brunner@...tron.com>

Reviewed-by: Guenter Roeck <linux@...ck-us.net>
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