From e744d7cc6c1f596be2f7ea3f66155f0ddebb0a6c Mon Sep 17 00:00:00 2001
From: Daehyeok Mun <daehyeok@gmail.com>
Date: Tue, 25 Apr 2017 01:13:48 -0600
Subject: [PATCH] Remove unnecessary line

Signed-off-by: Daehyeok Mun <daehyeok@gmail.com>
Upstream-commit: 145dfd924c8489cb2099bc1a86a01cd1fff19b70
Component: engine
---
 components/engine/plugin/backend_linux.go | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/components/engine/plugin/backend_linux.go b/components/engine/plugin/backend_linux.go
index 1f01dab6a7..4329983029 100644
--- a/components/engine/plugin/backend_linux.go
+++ b/components/engine/plugin/backend_linux.go
@@ -262,11 +262,9 @@ func (pm *Manager) Upgrade(ctx context.Context, ref reference.Named, name string
 	defer pm.muGC.RUnlock()
 
 	// revalidate because Pull is public
-	nameref, err := reference.ParseNormalizedNamed(name)
-	if err != nil {
+	if _, err := reference.ParseNormalizedNamed(name); err != nil {
 		return errors.Wrapf(err, "failed to parse %q", name)
 	}
-	name = reference.FamiliarString(reference.TagNameOnly(nameref))
 
 	tmpRootFSDir, err := ioutil.TempDir(pm.tmpDir(), ".rootfs")
 	if err != nil {