Enable clang-tidy as a sanity check, fix up all known failures

1 files changed, 3 insertions, 3 deletions

diff --git a/test/cpp/performance/writes_per_rpc_test.cc b/test/cpp/performance/writes_per_rpc_test.cc
index 6c23245021..23fff2ea8b 100644
--- a/test/cpp/performance/writes_per_rpc_test.cc
+++ b/test/cpp/performance/writes_per_rpc_test.cc
@@ -100,8 +100,8 @@ class EndpointPairFixture {
       }
 
       grpc_server_setup_transport(&exec_ctx, server_->c_server(), transport,
-                                  NULL, server_args);
-      grpc_chttp2_transport_start_reading(&exec_ctx, transport, NULL);
+                                  nullptr, server_args);
+      grpc_chttp2_transport_start_reading(&exec_ctx, transport, nullptr);
     }
 
     /* create channel */
@@ -116,7 +116,7 @@ class EndpointPairFixture {
       GPR_ASSERT(transport);
       grpc_channel* channel = grpc_channel_create(
           &exec_ctx, "target", &c_args, GRPC_CLIENT_DIRECT_CHANNEL, transport);
-      grpc_chttp2_transport_start_reading(&exec_ctx, transport, NULL);
+      grpc_chttp2_transport_start_reading(&exec_ctx, transport, nullptr);
 
       channel_ = CreateChannelInternal("", channel);
     }