diff --git a/Platform/user/rpc/rpc_client.c b/Platform/user/rpc/rpc_client.c
index 39644bfd3..9bdb6a506 100755
--- a/Platform/user/rpc/rpc_client.c
+++ b/Platform/user/rpc/rpc_client.c
@@ -205,6 +205,7 @@ ret_code rpc_client_recall(rpc_client**pclient, char* service_name,
             ASSERT_RET_NO(code);
             rpc_client_destroy(client);
             client = NULL;
+            *pclient = NULL;
         }
     }
 
@@ -218,7 +219,7 @@ ret_code rpc_client_recall(rpc_client**pclient, char* service_name,
                                    input, input_len, output, output_len);
         }
         
-        ASSERT_PTR(client, RET_NULLP);
+        ASSERT_PTR(client, RET_SENDERR);
     }
    
     return code;