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: 0769746183ca ("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>
diff --git a/drivers/gpio/gpiolib-sysfs.c b/drivers/gpio/gpiolib-sysfs.c
index 4667830..7722ed5 100644
--- a/drivers/gpio/gpiolib-sysfs.c
+++ b/drivers/gpio/gpiolib-sysfs.c
@@ -696,7 +696,7 @@
}
status = sysfs_set_active_low(desc, dev, value);
-
+ put_device(dev);
unlock:
mutex_unlock(&sysfs_lock);