fs: dlm: check on existing node address

	return rv;

}

/* caller need to held dlm_node_addrs_spin lock */

static bool dlm_lowcomms_na_has_addr(const struct dlm_node_addr *na,

				     const struct sockaddr_storage *addr)

{

	int i;

	for (i = 0; i < na->addr_count; i++) {

		if (addr_compare(na->addr[i], addr))

			return true;

	}

	return false;

}

int dlm_lowcomms_addr(int nodeid, struct sockaddr_storage *addr, int len)

{

	struct sockaddr_storage *new_addr;

	struct dlm_node_addr *new_node, *na;

	bool ret;

	new_node = kzalloc(sizeof(struct dlm_node_addr), GFP_NOFS);

	if (!new_node)

		return 0;

	}

	ret = dlm_lowcomms_na_has_addr(na, addr);

	if (ret) {

		spin_unlock(&dlm_node_addrs_spin);

		kfree(new_addr);

		kfree(new_node);

		return -EEXIST;

	}

	if (na->addr_count >= DLM_MAX_ADDR_COUNT) {

		spin_unlock(&dlm_node_addrs_spin);

		kfree(new_addr);