ubi_register_volume_notifier
ret = ubi_register_volume_notifier(&ubiblock_notifier, 0);
return ubi_register_volume_notifier(&gluebi_notifier, 0);
EXPORT_SYMBOL_GPL(ubi_register_volume_notifier);
return ubi_register_volume_notifier(&nvmem_notifier, 0);
int ubi_register_volume_notifier(struct notifier_block *nb,