From 5bd868da9001c78a6d38e7722bed39ec2b675a45 Mon Sep 17 00:00:00 2001
From: Tonis Tiigi <tonistiigi@gmail.com>
Date: Tue, 23 May 2017 16:29:13 -0700
Subject: [PATCH] Fix cancelling builder on chunked requests

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
(cherry picked from commit 23628bd7efb0aae565cea5ee040e373b0c93fd8d)
Signed-off-by: Eli Uriegas <eli.uriegas@docker.com>
---
 components/engine/builder/remotecontext/detect.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/components/engine/builder/remotecontext/detect.go b/components/engine/builder/remotecontext/detect.go
index 177596093a..448782dcca 100644
--- a/components/engine/builder/remotecontext/detect.go
+++ b/components/engine/builder/remotecontext/detect.go
@@ -41,6 +41,7 @@ func Detect(config backend.BuildConfig) (remote builder.Source, dockerfile *pars
 }
 
 func newArchiveRemote(rc io.ReadCloser, dockerfilePath string) (builder.Source, *parser.Result, error) {
+	defer rc.Close()
 	c, err := MakeTarSumContext(rc)
 	if err != nil {
 		return nil, nil, err