From 2e835e9f16acd0fd6ace354b62715c05979c96bf Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 26 Jan 2015 12:02:46 +0100 Subject: [PATCH] gpio: sysfs: fix memory leak in gpiod_sysfs_set_active_low commit 49d2ca84e433dab854c7a866bc6add09cfab682d upstream. 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") Signed-off-by: Johan Hovold Signed-off-by: Linus Walleij [lizf: Backported to 3.4: adjust filename] Signed-off-by: Zefan Li --- drivers/gpio/gpiolib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 011d134025255..7cb3cb94c672d 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -876,7 +876,7 @@ int gpio_sysfs_set_active_low(unsigned gpio, int value) } status = sysfs_set_active_low(desc, dev, value); - + put_device(dev); unlock: mutex_unlock(&sysfs_lock); -- 2.47.2