From 186e7456ac6ddddf31716ca083a2742b132cc225 Mon Sep 17 00:00:00 2001
From: Ian Campbell <ijc@docker.com>
Date: Tue, 12 Mar 2019 14:52:22 +0000
Subject: [PATCH] dial-stdio: Close the connection

This was leaking the fd.

Signed-off-by: Ian Campbell <ijc@docker.com>
---
 cli/command/system/dial_stdio.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cli/command/system/dial_stdio.go b/cli/command/system/dial_stdio.go
index ceeac8223f..017ed40ce3 100644
--- a/cli/command/system/dial_stdio.go
+++ b/cli/command/system/dial_stdio.go
@@ -34,6 +34,7 @@ func runDialStdio(dockerCli command.Cli) error {
 	if err != nil {
 		return errors.Wrap(err, "failed to open the raw stream connection")
 	}
+	defer conn.Close()
 
 	var connHalfCloser halfCloser
 	switch t := conn.(type) {