hello i was trying to use refcursor that is returned from a function in a procedure here’s my function

create or replace 
FUNCTION CUR_OUT
RETURN SYS_REFCURSOR

IS
l_rc sys_refcursor;
BEGIN
OPEN L_RC FOR
   SELECT FIRST_NAME,SALARY
    FROM EMPLOYEES;
RETURN L_RC;
end;

and here’s my procedure code that uses the refcursor

create or replace 
PROCEDURE P_TEST (PAR_CURSOR IN SYS_REFCURSOR)
IS
--  PAR_CURSOR SYS_REFCURSOR;
 L_ENAME VARCHAR2(20);
 l_sal NUMBER(8,2);
BEGIN
 loop
  fetch par_cursor into l_ename, l_sal;
    exit when par_cursor%notfound;
     dbms_output.put_line(l_ename ||' - '|| l_sal);
   end loop;
end;

and here’s the exection of the procedure

SET SERVEROUTPUT ON
DECLARE
BEGIN
P_TEST(CUR_OUT);
end;

but i am getting an error

 "PL/SQL: Function returned without value"
*Cause:    A call to PL/SQL function completed, but no RETURN statement was
           executed.
*Action:   Rewrite PL/SQL function, making sure that it always returns
           a value of a proper type.

so what seems to be the problem here?
note when i use the code inside the function in the anonymous block directly and then call the procedure it works fine