From e9c216ee23297490de8c3350d0b2fa1115d5c3da Mon Sep 17 00:00:00 2001
From: Craig Tiller <craig.tiller@gmail.com>
Date: Fri, 6 Nov 2015 14:48:46 -0800
Subject: [PATCH] Sending empty trailing metadata to a closed stream is ok - it
 means close this already closed stream

---
 src/core/transport/chttp2_transport.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/core/transport/chttp2_transport.c b/src/core/transport/chttp2_transport.c
index cbde3c5b865..f62294c7c50 100644
--- a/src/core/transport/chttp2_transport.c
+++ b/src/core/transport/chttp2_transport.c
@@ -806,7 +806,8 @@ static void perform_stream_op_locked(
     }
     if (stream_global->write_closed) {
       grpc_chttp2_complete_closure_step(
-          exec_ctx, &stream_global->send_trailing_metadata_finished, 0);
+          exec_ctx, &stream_global->send_trailing_metadata_finished, 
+          grpc_metadata_batch_is_empty(op->send_trailing_metadata));
     } else if (stream_global->id != 0) {
       /* TODO(ctiller): check if there's flow control for any outstanding
          bytes before going writable */