Fix dangling pointer when device closed just after opening.

    mDevices.removeAt(index);

    device->close();

    // Unlink for opening devices list if it is present.

    Device* pred = NULL;

    bool found = false;

    for (Device* entry = mOpeningDevices; entry != NULL; ) {

        if (entry == device) {

            found = true;

            break;

        }

        pred = entry;

        entry = entry->next;

    }

    if (found) {

        // Unlink the device from the opening devices list then delete it.

        // We don't need to tell the client that the device was closed because

        // it does not even know it was opened in the first place.

        LOGI("Device %s was immediately closed after opening.", device->path.string());

        if (pred) {

            pred->next = device->next;

        } else {

            mOpeningDevices = device->next;

        }

        delete device;

    } else {

        // Link into closing devices list.

        // The device will be deleted later after we have informed the client.

        device->next = mClosingDevices;

        mClosingDevices = device;

    }

    return 0;

}