LDAP_MUTEX_LOCK( &ld->ld_conn_mutex );
ldap_free_connection( ld, lr->lr_conn, 0, 1 );
LDAP_MUTEX_UNLOCK( &ld->ld_conn_mutex );
LDAP_MUTEX_LOCK( &ld->ld_conn_mutex );
ldap_free_connection( ld, lr->lr_conn, 0, 1 );
LDAP_MUTEX_UNLOCK( &ld->ld_conn_mutex );