net: cdc-phonet: fix data-interface release on probe failure

Set the disconnected flag before releasing the data interface in case
netdev registration fails to avoid having the disconnect callback try to
deregister the never registered netdev (and trigger a WARN_ON()).

Fixes: 87cf65601e ("USB host CDC Phonet network interface driver")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Johan Hovold 2021-03-18 16:57:49 +01:00 коммит произвёл David S. Miller
Родитель 84f4aced67
Коммит c79a707072
1 изменённых файлов: 2 добавлений и 0 удалений

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@ -387,6 +387,8 @@ static int usbpn_probe(struct usb_interface *intf, const struct usb_device_id *i
err = register_netdev(dev);
if (err) {
/* Set disconnected flag so that disconnect() returns early. */
pnd->disconnected = 1;
usb_driver_release_interface(&usbpn_driver, data_intf);
goto out;
}