| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 13/41] USB: core: fix device node leak | Date | Mon, 10 Jul 2017 19:10:46 +0200 |
| |
4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Johan Hovold <johan@kernel.org>
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 <peter.chen@nxp.com> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- 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);
|