kubernetes-cn/kubernetes: pkg/registry/rbac/rest/storage_rbac.go; 28 LoC

Found a possible issue in [kubernetes-cn/kubernetes](https://www.github.com/kubernetes-cn/kubernetes) at [pkg/registry/rbac/rest/storage_rbac.go](https://github.com/kubernetes-cn/kubernetes/blob/c3bec0bae43b4c46800a13f44534ce6cd14b5f40/pkg/registry/rbac/rest/storage_rbac.go#L267-L294)

Below is the message reported by the analyzer for this snippet of code. Beware that the analyzer only reports the first
issue it finds, so please do not limit your consideration to the contents of the below message.

> reference to roleBinding was used in a composite literal at line 269

[Click here to see the code in its original context.](https://github.com/kubernetes-cn/kubernetes/blob/c3bec0bae43b4c46800a13f44534ce6cd14b5f40/pkg/registry/rbac/rest/storage_rbac.go#L267-L294)

Click here to show the 28 line(s) of Go which triggered the analyzer.

```go
for _, roleBinding := range roleBindings {
opts := reconciliation.ReconcileRoleBindingOptions{
RoleBinding: reconciliation.RoleBindingAdapter{RoleBinding: &roleBinding},
Client: reconciliation.RoleBindingClientAdapter{Client: clientset, NamespaceClient: coreclientset.Namespaces()},
Confirm: true,
}
err := retry.RetryOnConflict(retry.DefaultBackoff, func() error {
result, err := opts.Run()
if err != nil {
return err
}
switch {
case result.Protected && result.Operation != reconciliation.ReconcileNone:
klog.Warningf("skipped reconcile-protected rolebinding.%s/%s in %v with missing subjects: %v", rbac.GroupName, roleBinding.Name, namespace, result.MissingSubjects)
case result.Operation == reconciliation.ReconcileUpdate:
klog.Infof("updated rolebinding.%s/%s in %v with additional subjects: %v", rbac.GroupName, roleBinding.Name, namespace, result.MissingSubjects)
case result.Operation == reconciliation.ReconcileCreate:
klog.Infof("created rolebinding.%s/%s in %v", rbac.GroupName, roleBinding.Name, namespace)
case result.Operation == reconciliation.ReconcileRecreate:
klog.Infof("recreated rolebinding.%s/%s in %v", rbac.GroupName, roleBinding.Name, namespace)
}
return nil
})
if err != nil {
// don't fail on failures, try to create as many as you can
utilruntime.HandleError(fmt.Errorf("unable to reconcile rolebinding.%s/%s in %v: %v", rbac.GroupName, roleBinding.Name, namespace, err))
}
}

```

Leave a reaction on this issue to contribute to the project by classifying this instance as a **Bug** :-1:, **Mitigated** :+1:, or **Desirable Behavior** :rocket:
See the descriptions of the classifications [here](https://github.com/github-vet/rangeclosure-findings#how-can-i-help) for more information.

commit ID: c3bec0bae43b4c46800a13f44534ce6cd14b5f40