Inline procedure oracle

DECLARE
v_id_parent integer;
v_id integer;
CURSOR CUR_ACTION_FORMATION IS
SELECT id_action_formation,id_action_parent FROM action_formation;
BEGIN
   OPEN CUR_ACTION_FORMATION;
   LOOP
      FETCH CUR_ACTION_FORMATION INTO v_id, v_id_parent;
  --    dbms_output.put_line(v_id_parent);
    update action_formation set crf_diffuseur = (SELECT max(id_centre) FROM centre_action_organisme
    where id_action_formation=v_id) where id_action_formation=v_id;
      EXIT WHEN CUR_ACTION_FORMATION%NOTFOUND;
   END LOOP;
   commit;
   CLOSE CUR_ACTION_FORMATION;
END;