Confused about a function returning SETOF

I have the following function:

CREATE or REPLACE FUNCTION public.lov_personinorganization_role_status(

varchar,

varchar)

RETURNS SETOF person_status_in_organization AS

$BODY$

DECLARE

rec person_status_in_organization%ROWTYPE;

role ALIAS FOR $1;

from_status ALIAS FOR $2;

BEGIN

FOR rec IN

SELECT * FROM person_status_in_organization lov,

status_in_organization_change_lov res

WHERE res.role = role

AND res.from_status = from_status

AND lov.role = res.role

AND lov.status = res.to_status

ORDER BY lov.display_order

LOOP

RETURN NEXT rec;

END LOOP; -- FOR rec IN person_status_in_organization

RETURN;

END; -- of lov_personinorganization_role_status

$BODY$

LANGUAGE 'plpgsql' VOLATILE;

Where person_status_in_organization is a table.

When I try to invoke it with:

select lov_personinorganization_role_status('Student','Applicant');

I get the error message:

ERROR: set-valued function called in context that cannot accept a set

CONTEXT: PL/pgSQL function "lov_personinorganization_role_status" line 15
at return next

Where have I gone astray?

~ TIA

~ Ken