Function ng_socket_free_priv

freebsd/netgraph/ng_socket.c:664–687

* Remove a reference from node private data. */

 * Remove a reference from node private data.
 */
static void
ng_socket_free_priv(struct ngsock *priv)
{
	mtx_assert(&priv->mtx, MA_OWNED);

	priv->refs--;

	if (priv->refs == 0) {
		mtx_destroy(&priv->mtx);
		hashdestroy(priv->hash, M_NETGRAPH_SOCK, priv->hmask);
		free(priv, M_NETGRAPH_SOCK);
		return;
	}

	if ((priv->refs == 1) && (priv->node != NULL)) {
		node_p node = priv->node;

		priv->node = NULL;
		mtx_unlock(&priv->mtx);
		NG_NODE_UNREF(node);
		ng_rmnode_self(node);
	} else
		mtx_unlock(&priv->mtx);
}

/*
 * Connect the data socket to a named control socket node.