init_libmount_lock(const char *filename)
{
	if (filename)
		return libmount_lock = mnt_new_lock(filename, 0);
	if (libmount_lock)
		mnt_free_lock(libmount_lock);
	libmount_lock = NULL;
	return NULL;
}
init_libmount_lock(const char *filename)
{
	if (filename)
		return libmount_lock = mnt_new_lock(filename, 0);
	if (libmount_lock)
		mnt_free_lock(libmount_lock);
	libmount_lock = NULL;
	return NULL;
}