Calling a RPG module from a CLLE

I am having a problem with using an RPG module from a CLLE.

Here is the RPG module
  *--------------------------------------------------------------------------
 d Validate_Company...                                                       
 d                 pi              n                                         
 d      xCompany                  2p 0 value                                 
  *--------------------------------------------------------------------------
 d    Record_ID    s                   like(strcid) inz('CPY')               
 d    ind          s               n                                         
  *--------------------------------------------------------------------------
  /free                                                                      
       open ahpsstp;                                                         
       chain (Record_ID:xCompany) ahpsstp;                                   
       ind = not %found(ahpsstp);                                            
       close ahpsstp;                                                        
       return ind;                                                           
  /end-free                                                                  
  *--------------------------------------------------------------------------
 p Validate_Company...                                                       
 p                 e                                                         


And here is the call from the CL program.


                                                                       
            CALLPRC    PRC(VALIDATE_COMPANY) PARM((&COMP *BYVAL)) +    
                         RTNVAL(&VALID)                                

And when this line executes, the module errors out on the return with MCH3601 
invalid pointer. In debug mode the parameter passed is correct. But attempting 
to return the result errors out.

Can anyone point out what I am doing wrong?

Marvin