10687 Service routine cast changes need smatch fixes

*** 19,29 ****
   * CDDL HEADER END
   */
  /*
   * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
   * Copyright (c) 2012 Nexenta Systems, Inc. All rights reserved.
!  * Copyright 2017 Joyent, Inc.
   */
  
  #include <sys/param.h>
  #include <sys/types.h>
  #include <sys/stream.h>
--- 19,29 ----
   * CDDL HEADER END
   */
  /*
   * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
   * Copyright (c) 2012 Nexenta Systems, Inc. All rights reserved.
!  * Copyright 2019, Joyent, Inc.
   */
  
  #include <sys/param.h>
  #include <sys/types.h>
  #include <sys/stream.h>
*** 3607,3617 ****
                  return (0);
          }
  
          while ((mp = getq(q)) != NULL) {
                  if (ipsec_loaded(ipss)) {
!                         spdsock_wput(q, mp);
                          if (ss->spdsock_dump_req != NULL)
                                  return (0);
                  } else if (!ipsec_failed(ipss)) {
                          (void) putq(q, mp);
                  } else {
--- 3607,3617 ----
                  return (0);
          }
  
          while ((mp = getq(q)) != NULL) {
                  if (ipsec_loaded(ipss)) {
!                         (void) spdsock_wput(q, mp);
                          if (ss->spdsock_dump_req != NULL)
                                  return (0);
                  } else if (!ipsec_failed(ipss)) {
                          (void) putq(q, mp);
                  } else {