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, Peter Chen , Johan Hovold Subject: [PATCH 4.9 13/41] USB: core: fix device node leak Date: Mon, 10 Jul 2017 19:10:46 +0200 Message-Id: <20170710171052.402102799@linuxfoundation.org> In-Reply-To: <20170710171051.866846041@linuxfoundation.org> References: <20170710171051.866846041@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Johan Hovold commit e271b2c909a22a2c13b2d5f77f2ce0091b74540c upstream. Make sure to release any OF device-node reference taken when creating the USB device. Note that we currently do not hold a reference to the root hub device-tree node (i.e. the parent controller node). Fixes: 69bec7259853 ("USB: core: let USB device know device node") Acked-by: Peter Chen Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/usb.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -279,6 +279,8 @@ static void usb_release_dev(struct devic usb_destroy_configuration(udev); usb_release_bos_descriptor(udev); + if (udev->parent) + of_node_put(dev->of_node); usb_put_hcd(hcd); kfree(udev->product); kfree(udev->manufacturer);