vsw_conn_evt_t
vsw_conn_evt_t *conn = NULL;
if ((conn = kmem_zalloc(sizeof (vsw_conn_evt_t), KM_NOSLEEP)) == NULL) {
kmem_free(conn, sizeof (vsw_conn_evt_t));
vsw_conn_evt_t *conn = (vsw_conn_evt_t *)arg;
kmem_free(conn, sizeof (vsw_conn_evt_t));