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gpio: sysfs: fix memory leak in gpiod_sysfs_set_active_low 

Fix memory leak in the gpio sysfs interface due to failure to drop
reference to device returned by class_find_device when setting the
gpio-line polarity.

Fixes: 0769746183 ("gpiolib: add support for changing value polarity
in sysfs")
Cc: stable <stable@vger.kernel.org>	# v2.6.33
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Johan Hovold 2015-01-26 12:02:46 +01:00 committed by Linus Walleij
parent 0f303db08d
commit 49d2ca84e4
1 changed files with 1 additions and 1 deletions
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2
drivers/gpio/gpiolib-sysfs.c
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@ -696,7 +696,7 @@ int gpiod_sysfs_set_active_low(struct gpio_desc *desc, int value)
}
status = sysfs_set_active_low(desc, dev, value);
put_device(dev);
unlock:
mutex_unlock(&sysfs_lock);