From f526b2f87a9d9bd710311ceebf69b4b4ad94aaa7 Mon Sep 17 00:00:00 2001
From: Karolis Rusenas <karolis.rusenas@gmail.com>
Date: Sat, 6 Jun 2020 13:50:25 +0100
Subject: [PATCH] should return an err

---
 extension/credentialshelper/gcr/gcr.go | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/extension/credentialshelper/gcr/gcr.go b/extension/credentialshelper/gcr/gcr.go
index 2e3d7850..759b0435 100644
--- a/extension/credentialshelper/gcr/gcr.go
+++ b/extension/credentialshelper/gcr/gcr.go
@@ -1,7 +1,7 @@
 package gcr
 
 import (
-	"fmt"
+	"errors"
 	"io/ioutil"
 	"os"
 
@@ -42,11 +42,11 @@ func (h *CredentialsHelper) IsEnabled() bool {
 
 func (h *CredentialsHelper) GetCredentials(image *types.TrackedImage) (*types.Credentials, error) {
 	if !h.enabled {
-		return nil, fmt.Errorf("not initialised")
+		return nil, errors.New("not initialised")
 	}
 
 	if image.Image.Registry() != "gcr.io" {
-		return nil, nil
+		return nil, credentialshelper.ErrUnsupportedRegistry
 	}
 
 	return &types.Credentials{