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USB: core: fix device node leak

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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: 69bec72598 ("USB: core: let USB device know device node")
Cc: stable <stable@vger.kernel.org>	# v4.6
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>
This commit is contained in:
Johan Hovold 2017-06-06 17:58:58 +02:00 committed by Greg Kroah-Hartman
parent 0bd08fc8db
commit e271b2c909
1 changed files with 2 additions and 0 deletions
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2
drivers/usb/core/usb.c
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@ -416,6 +416,8 @@ static void usb_release_dev(struct device *dev)
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);