check type casting for go-lint

Signed-off-by: Swati Gupta <[email protected]>

Author: guptaNswati

cmd/compute-domain-controller/computedomain.go

@@ -99,7 +99,10 @@ func (m *ComputeDomainManager) Start(ctx context.Context) (rerr error) {
 
 	_, err = m.informer.AddEventHandler(cache.ResourceEventHandlerFuncs{
 		AddFunc: func(obj any) {
-			cd := obj.(*nvapi.ComputeDomain)
+			cd, ok := obj.(*nvapi.ComputeDomain)
+			if !ok {
+				return fmt.Errorf("failed to cast to ComputeDomain")
+			}
 			klog.Infof("ComputeDomain %s/%s added to work queue", cd.Namespace, cd.Name)
 			m.config.workQueue.Enqueue(obj, m.onAddOrUpdate)
 		},