Two NLM fixes: use zone_kcred() and plug cl_auth leaks

*** 847,886 ****
          /*
           * Create an RPC handle that'll be used for communication with local
           * statd using the status monitor protocol.
           */
          error = clnt_tli_kcreate(&nsm->ns_knc, &nsm->ns_addr, SM_PROG, SM_VERS,
!             0, NLM_RPC_RETRIES, kcred, &nsm->ns_handle);
          if (error != 0)
                  goto error;
  
          /*
           * Create an RPC handle that'll be used for communication with the
           * local statd using the address registration protocol.
           */
          error = clnt_tli_kcreate(&nsm->ns_knc, &nsm->ns_addr, NSM_ADDR_PROGRAM,
!             NSM_ADDR_V1, 0, NLM_RPC_RETRIES, kcred, &nsm->ns_addr_handle);
          if (error != 0)
                  goto error;
  
          sema_init(&nsm->ns_sem, 1, NULL, SEMA_DEFAULT, NULL);
          return (0);
  
  error:
          kmem_free(nsm->ns_addr.buf, nsm->ns_addr.maxlen);
!         if (nsm->ns_handle)
                  CLNT_DESTROY(nsm->ns_handle);
  
          return (error);
  }
  
  static void
  nlm_nsm_fini(struct nlm_nsm *nsm)
  {
          kmem_free(nsm->ns_addr.buf, nsm->ns_addr.maxlen);
          CLNT_DESTROY(nsm->ns_addr_handle);
          nsm->ns_addr_handle = NULL;
          CLNT_DESTROY(nsm->ns_handle);
          nsm->ns_handle = NULL;
          sema_destroy(&nsm->ns_sem);
  }
  
--- 847,894 ----
          /*
           * Create an RPC handle that'll be used for communication with local
           * statd using the status monitor protocol.
           */
          error = clnt_tli_kcreate(&nsm->ns_knc, &nsm->ns_addr, SM_PROG, SM_VERS,
!             0, NLM_RPC_RETRIES, zone_kcred(), &nsm->ns_handle);
          if (error != 0)
                  goto error;
  
          /*
           * Create an RPC handle that'll be used for communication with the
           * local statd using the address registration protocol.
           */
          error = clnt_tli_kcreate(&nsm->ns_knc, &nsm->ns_addr, NSM_ADDR_PROGRAM,
!             NSM_ADDR_V1, 0, NLM_RPC_RETRIES, zone_kcred(),
!             &nsm->ns_addr_handle);
          if (error != 0)
                  goto error;
  
          sema_init(&nsm->ns_sem, 1, NULL, SEMA_DEFAULT, NULL);
          return (0);
  
  error:
          kmem_free(nsm->ns_addr.buf, nsm->ns_addr.maxlen);
!         if (nsm->ns_handle) {
!                 ASSERT(nsm->ns_handle->cl_auth != NULL);
!                 auth_destroy(nsm->ns_handle->cl_auth);
                  CLNT_DESTROY(nsm->ns_handle);
+         }
  
          return (error);
  }
  
  static void
  nlm_nsm_fini(struct nlm_nsm *nsm)
  {
          kmem_free(nsm->ns_addr.buf, nsm->ns_addr.maxlen);
+         if (nsm->ns_addr_handle->cl_auth != NULL)
+                 auth_destroy(nsm->ns_addr_handle->cl_auth);
          CLNT_DESTROY(nsm->ns_addr_handle);
          nsm->ns_addr_handle = NULL;
+         if (nsm->ns_handle->cl_auth != NULL)
+                 auth_destroy(nsm->ns_handle->cl_auth);
          CLNT_DESTROY(nsm->ns_handle);
          nsm->ns_handle = NULL;
          sema_destroy(&nsm->ns_sem);
  }
  
*** 2806,2816 ****
  
  void
  nlm_nsm_clnt_init(CLIENT *clnt, struct nlm_nsm *nsm)
  {
          (void) clnt_tli_kinit(clnt, &nsm->ns_knc, &nsm->ns_addr, 0,
!             NLM_RPC_RETRIES, kcred);
  }
  
  void
  nlm_netbuf_to_netobj(struct netbuf *addr, int *family, netobj *obj)
  {
--- 2814,2824 ----
  
  void
  nlm_nsm_clnt_init(CLIENT *clnt, struct nlm_nsm *nsm)
  {
          (void) clnt_tli_kinit(clnt, &nsm->ns_knc, &nsm->ns_addr, 0,
!             NLM_RPC_RETRIES, zone_kcred());
  }
  
  void
  nlm_netbuf_to_netobj(struct netbuf *addr, int *family, netobj *obj)
  {