gpio: gpio-kempld: Fix get_direction return value

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[ Upstream commit f230e8ffc0 ]

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.

Cc: Stable <stable@vger.kernel.org> # v3.12+
Reported-by: Jochen Henneberg <jh@henneberg-systemdesign.com>
Signed-off-by: Michael Brunner <michael.brunner@kontron.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

...

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Michael Brunner 2015-05-11 12:46:49 +02:00 • committed by Sasha Levin

parent 7ca7760adb

commit bfea0f5c4b

1 changed files with 1 additions and 1 deletions

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drivers/gpio/gpio-kempld.c

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