From 8c58a489a2cf8f81299d97a082995cb77eb0bc52 Mon Sep 17 00:00:00 2001
From: Craig Tiller <ctiller@google.com>
Date: Tue, 7 Feb 2017 14:52:59 -0800
Subject: [PATCH] Save allocating a grpc_error if there is no error

---
 src/core/lib/surface/call.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/lib/surface/call.c b/src/core/lib/surface/call.c
index 70bab4c0796..7f1410a0856 100644
--- a/src/core/lib/surface/call.c
+++ b/src/core/lib/surface/call.c
@@ -897,7 +897,7 @@ static void recv_common_filter(grpc_exec_ctx *exec_ctx, grpc_call *call,
       error = grpc_error_set_str(error, GRPC_ERROR_STR_GRPC_MESSAGE, msg);
       gpr_free(msg);
       grpc_metadata_batch_remove(exec_ctx, b, b->idx.named.grpc_message);
-    } else {
+    } else if (error != GRPC_ERROR_NONE) {
       error = grpc_error_set_str(error, GRPC_ERROR_STR_GRPC_MESSAGE, "");
     }