From 170e4d2e19258c4e45b975177618640cb554c32b Mon Sep 17 00:00:00 2001
From: Michael Crosby <michael@crosbymichael.com>
Date: Thu, 8 May 2014 12:57:19 -0700
Subject: [PATCH] Cast Input and Output to closer Docker-DCO-1.1-Signed-off-by:
 Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)

---
 engine/streams.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/engine/streams.go b/engine/streams.go
index 48f031de8f..6cc10d346d 100644
--- a/engine/streams.go
+++ b/engine/streams.go
@@ -118,7 +118,7 @@ func (o *Output) Close() error {
 	defer o.Unlock()
 	var firstErr error
 	for _, dst := range o.dests {
-		if closer, ok := dst.(io.WriteCloser); ok {
+		if closer, ok := dst.(io.Closer); ok {
 			err := closer.Close()
 			if err != nil && firstErr == nil {
 				firstErr = err
@@ -154,7 +154,7 @@ func (i *Input) Read(p []byte) (n int, err error) {
 // Not thread safe on purpose
 func (i *Input) Close() error {
 	if i.src != nil {
-		if closer, ok := i.src.(io.WriteCloser); ok {
+		if closer, ok := i.src.(io.Closer); ok {
 			return closer.Close()
 		}
 	}