6141 use kmem_zalloc instead of kmem_alloc + bzero/memset

@@ -955,14 +955,13 @@
          * taskq func must free arg.
          */
         arg = kmem_alloc(sizeof (*arg), KM_SLEEP);
 
         /* taskq func must free rpc_call_arg & deserialized arguments */
-        arg->rpc_call_arg = kmem_alloc(sizeof (*arg->rpc_call_arg), KM_SLEEP);
+        arg->rpc_call_arg = kmem_zalloc(sizeof (*arg->rpc_call_arg), KM_SLEEP);
 
         /* deserialize arguments */
-        bzero(arg->rpc_call_arg, sizeof (*arg->rpc_call_arg));
         if (!SVC_GETARGS(rqst->rq_xprt, __xdr_rpc_gss_init_arg,
             (caddr_t)arg->rpc_call_arg)) {
                 ret = RPCSEC_GSS_FAILED;
                 client_data->stale = TRUE;
                 goto error2;