From 77204bfdf20f994410e246a68543efe9cb644f98 Mon Sep 17 00:00:00 2001
From: Doug Fawley <dfawley@google.com>
Date: Fri, 3 Mar 2017 12:48:16 -0800
Subject: [PATCH] Add comment explaining why cancel is not called in success
 path after client transport is created

---
 clientconn.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/clientconn.go b/clientconn.go
index 459ce0b6..cff53f73 100644
--- a/clientconn.go
+++ b/clientconn.go
@@ -777,6 +777,8 @@ func (ac *addrConn) resetTransport(closeTransport bool) error {
 			Metadata: ac.addr.Metadata,
 		}
 		newTransport, err := transport.NewClientTransport(ctx, sinfo, ac.dopts.copts)
+		// Don't call cancel in success path due to a race in Go 1.6:
+		// https://github.com/golang/go/issues/15078.
 		if err != nil {
 			cancel()