cleaner code

weed/replication/sink/s3sink/s3_sink.go

@@ -127,6 +127,7 @@ func (s3sink *S3Sink) CreateEntry(key string, entry *filer_pb.Entry, signatures
 
 	parts := make([]*s3.CompletedPart, len(chunkViews))
 
+	if len(parts) > 0 {
 		var wg sync.WaitGroup
 		for chunkIndex, chunk := range chunkViews {
 			partId := chunkIndex + 1
@@ -142,14 +143,13 @@ func (s3sink *S3Sink) CreateEntry(key string, entry *filer_pb.Entry, signatures
 			}(chunk, chunkIndex)
 		}
 		wg.Wait()
-
+	} else if len(entry.Content) > 0 {
 		// for small files
-	if len(entry.Content) > 0 {
-		parts = make([]*s3.CompletedPart, 1)
 		if part, uploadErr := s3sink.doUploadPart(key, uploadId, 1, bytes.NewReader(entry.Content)); uploadErr != nil {
 			err = uploadErr
 			glog.Errorf("uploadPart: %v", uploadErr)
 		} else {
+			parts = make([]*s3.CompletedPart, 1)
 			parts[0] = part
 		}
 	}