8660 mpi code checks return value of void function

*** 44,61 ****
   * ***** END LICENSE BLOCK ***** */
  /*
   * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   *
   * Sun elects to use this software under the MPL license.
   */
  
  #ifndef _MPI_PRIV_H
  #define _MPI_PRIV_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"
- 
  /* $Id: mpi-priv.h,v 1.20 2005/11/22 07:16:43 relyea%netscape.com Exp $ */
  
  #include "mpi.h"
  #ifndef _KERNEL
  #include <stdlib.h>
--- 44,61 ----
   * ***** END LICENSE BLOCK ***** */
  /*
   * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   *
+  * Copyright 2017 RackTop Systems.
+  *
   * Sun elects to use this software under the MPL license.
   */
  
  #ifndef _MPI_PRIV_H
  #define _MPI_PRIV_H
  
  /* $Id: mpi-priv.h,v 1.20 2005/11/22 07:16:43 relyea%netscape.com Exp $ */
  
  #include "mpi.h"
  #ifndef _KERNEL
  #include <stdlib.h>
*** 298,308 ****
  mp_err   MPI_ASM_DECL s_mpv_div_2dx1d(mp_digit Nhi, mp_digit Nlo,
                              mp_digit divisor, mp_digit *quot, mp_digit *rem);
  
  /* c += a * b * (MP_RADIX ** offset);  */
  #define s_mp_mul_d_add_offset(a, b, c, off) \
! (s_mpv_mul_d_add_prop(MP_DIGITS(a), MP_USED(a), b, MP_DIGITS(c) + off), MP_OKAY)
  
  typedef struct {
    mp_int       N;       /* modulus N */
    mp_digit     n0prime; /* n0' = - (n0 ** -1) mod MP_RADIX */
    mp_size      b;       /* R == 2 ** b,  also b = # significant bits in N */
--- 298,308 ----
  mp_err   MPI_ASM_DECL s_mpv_div_2dx1d(mp_digit Nhi, mp_digit Nlo,
                              mp_digit divisor, mp_digit *quot, mp_digit *rem);
  
  /* c += a * b * (MP_RADIX ** offset);  */
  #define s_mp_mul_d_add_offset(a, b, c, off) \
!         s_mpv_mul_d_add_prop(MP_DIGITS(a), MP_USED(a), b, MP_DIGITS(c) + off)
  
  typedef struct {
    mp_int       N;       /* modulus N */
    mp_digit     n0prime; /* n0' = - (n0 ** -1) mod MP_RADIX */
    mp_size      b;       /* R == 2 ** b,  also b = # significant bits in N */