From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Johan Hovold , Linus Walleij Subject: [PATCH 3.10 01/17] gpio: sysfs: fix memory leak in gpiod_export_link Date: Mon, 9 Feb 2015 16:33:28 +0800 Message-Id: <20150209083039.418999083@linuxfoundation.org> In-Reply-To: <20150209083039.240170510@linuxfoundation.org> References: <20150209083039.240170510@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Johan Hovold commit 0f303db08df0df9bd0966443ad6001e63960af16 upstream. Fix memory leak in the gpio sysfs interface due to failure to drop reference to device returned by class_find_device when creating a link. Fixes: a4177ee7f1a8 ("gpiolib: allow exported GPIO nodes to be named using sysfs links") Signed-off-by: Johan Hovold Signed-off-by: Linus Walleij Signed-off-by: Greg Kroah-Hartman --- drivers/gpio/gpiolib.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -874,6 +874,7 @@ static int gpiod_export_link(struct devi if (tdev != NULL) { status = sysfs_create_link(&dev->kobj, &tdev->kobj, name); + put_device(tdev); } else { status = -ENODEV; }