remove []byte trans, handle func error

pkg/agent/containerd/containerd.go

@@ -197,7 +197,7 @@ func getPrivateRegistries(ctx context.Context, cfg *config.Node) (*templates.Reg
 		return nil, err
 	}
 	logrus.Infof("Using registry config file at %s", cfg.AgentConfig.PrivateRegistry)
-	if err := yaml.Unmarshal([]byte(privRegistryFile), &privRegistries); err != nil {
+	if err := yaml.Unmarshal(privRegistryFile, &privRegistries); err != nil {
 		return nil, err
 	}
 	return privRegistries, nil

pkg/agent/netpol/utils.go

@@ -246,8 +246,8 @@ func (entry *Entry) Del() error {
 	if err != nil {
 		return err
 	}
-	entry.Set.Parent.Save()
-	return nil
+
+	return entry.Set.Parent.Save()
 }
 
 // Test wether an entry is in a set or not. Exit status number is zero if the