From 4abf680c76151da0f4a9086d44abad655cb1f01e Mon Sep 17 00:00:00 2001
From: Stephen J Day <stephen.day@docker.com>
Date: Fri, 29 Sep 2017 13:27:49 -0700
Subject: [PATCH] registry: feed the linter by removing redundant err check

Signed-off-by: Stephen J Day <stephen.day@docker.com>
---
 registry/api/errcode/handler.go | 6 +-----
 registry/proxy/proxyauth.go     | 6 +-----
 registry/storage/blobwriter.go  | 6 +-----
 3 files changed, 3 insertions(+), 15 deletions(-)

diff --git a/registry/api/errcode/handler.go b/registry/api/errcode/handler.go
index 49a64a86e..d77e70473 100644
--- a/registry/api/errcode/handler.go
+++ b/registry/api/errcode/handler.go
@@ -36,9 +36,5 @@ func ServeJSON(w http.ResponseWriter, err error) error {
 
 	w.WriteHeader(sc)
 
-	if err := json.NewEncoder(w).Encode(err); err != nil {
-		return err
-	}
-
-	return nil
+	return json.NewEncoder(w).Encode(err)
 }
diff --git a/registry/proxy/proxyauth.go b/registry/proxy/proxyauth.go
index 7b405afcf..09a0973e6 100644
--- a/registry/proxy/proxyauth.go
+++ b/registry/proxy/proxyauth.go
@@ -79,9 +79,5 @@ func ping(manager challenge.Manager, endpoint, versionHeader string) error {
 	}
 	defer resp.Body.Close()
 
-	if err := manager.AddResponse(resp); err != nil {
-		return err
-	}
-
-	return nil
+	return manager.AddResponse(resp)
 }
diff --git a/registry/storage/blobwriter.go b/registry/storage/blobwriter.go
index d56f28749..2bb25dcc5 100644
--- a/registry/storage/blobwriter.go
+++ b/registry/storage/blobwriter.go
@@ -104,11 +104,7 @@ func (bw *blobWriter) Cancel(ctx context.Context) error {
 		dcontext.GetLogger(ctx).Errorf("error closing blobwriter: %s", err)
 	}
 
-	if err := bw.removeResources(ctx); err != nil {
-		return err
-	}
-
-	return nil
+	return bw.removeResources(ctx)
 }
 
 func (bw *blobWriter) Size() int64 {