This is a note to let you know that I've just added the patch titled
gpio: gpio-kempld: Fix get_direction return value
to the 4.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
gpio-gpio-kempld-fix-get_direction-return-value.patch
and it can be found in the queue-4.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From f230e8ffc03f17bd9d6b90ea890b8252a8cc1821 Mon Sep 17 00:00:00 2001
From: Michael Brunner <[email protected]>
Date: Mon, 11 May 2015 12:46:49 +0200
Subject: gpio: gpio-kempld: Fix get_direction return value
From: Michael Brunner <[email protected]>
commit f230e8ffc03f17bd9d6b90ea890b8252a8cc1821 upstream.
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 <[email protected]>
Signed-off-by: Michael Brunner <[email protected]>
Reviewed-by: Guenter Roeck <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpio/gpio-kempld.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpio/gpio-kempld.c
+++ b/drivers/gpio/gpio-kempld.c
@@ -117,7 +117,7 @@ static int kempld_gpio_get_direction(str
= container_of(chip, struct kempld_gpio_data, chip);
struct kempld_device_data *pld = gpio->pld;
- return kempld_gpio_get_bit(pld, KEMPLD_GPIO_DIR_NUM(offset), offset);
+ return !kempld_gpio_get_bit(pld, KEMPLD_GPIO_DIR_NUM(offset), offset);
}
static int kempld_gpio_pincount(struct kempld_device_data *pld)
Patches currently in stable-queue which might be from [email protected] are
queue-4.0/gpio-gpio-kempld-fix-get_direction-return-value.patch
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