diff --git a/operator/cmd/operator/app/options/options.go b/operator/cmd/operator/app/options/options.go
index 684e881c3..f65c15668 100644
--- a/operator/cmd/operator/app/options/options.go
+++ b/operator/cmd/operator/app/options/options.go
@@ -73,9 +73,9 @@ func (o *Options) AddFlags(fs *pflag.FlagSet, allControllers []string, disabledB
 	fs.Int32Var(&o.KubeAPIBurst, "kube-api-burst", o.KubeAPIBurst, "Burst to use while talking with kubernetes apiserver.")
 	fs.StringSliceVar(&o.Controllers, "controllers", o.Controllers, fmt.Sprintf(""+
 		"A list of controllers to enable. '*' enables all on-by-default controllers, 'foo' enables the controller "+
-		"named 'foo', '-foo' disables the controller named 'foo'.\nAll controllers: %s\nDisabled-by-default controllers: %s",
+		"named 'foo', '-foo' disables the controller named 'foo'.\nAll controllers: %s .\nDisabled-by-default controllers: %s .",
 		strings.Join(allControllers, ", "), strings.Join(disabledByDefaultControllers, ", ")))
-	fs.IntVar(&o.ConcurrentKarmadaSyncs, "concurrent-karmada-syncs", o.ConcurrentKarmadaSyncs, "The number of karmada objects that are allowed to sync concurrently..")
+	fs.IntVar(&o.ConcurrentKarmadaSyncs, "concurrent-karmada-syncs", o.ConcurrentKarmadaSyncs, "The number of karmada objects that are allowed to sync concurrently.")
 	options.BindLeaderElectionFlags(&o.LeaderElection, fs)
 }
 
diff --git a/operator/pkg/controlplane/manifests.go b/operator/pkg/controlplane/manifests.go
index f57f30d12..07dd88947 100644
--- a/operator/pkg/controlplane/manifests.go
+++ b/operator/pkg/controlplane/manifests.go
@@ -16,11 +16,6 @@ spec:
   selector:
     matchLabels:
       karmada-app: kube-controller-manager
-  strategy:
-    rollingUpdate:
-      maxSurge: 1
-      maxUnavailable: 1
-    type: RollingUpdate
   template:
     metadata:
       labels:
diff --git a/operator/pkg/deinit.go b/operator/pkg/deinit.go
index 4dc5317e4..c2e9cb0a6 100644
--- a/operator/pkg/deinit.go
+++ b/operator/pkg/deinit.go
@@ -22,7 +22,7 @@ type DeInitOptions struct {
 }
 
 // DeInitOpt defines a type of function to set DeInitOptions values.
-type DeInitOpt func(opt *DeInitOptions)
+type DeInitOpt func(o *DeInitOptions)
 
 var _ tasks.DeInitData = &deInitData{}
 
@@ -103,19 +103,19 @@ func defaultJobDeInitOptions() *DeInitOptions {
 
 // NewDeInitOptWithKarmada returns a DeInitOpt function to initialize DeInitOptions with karmada resource
 func NewDeInitOptWithKarmada(karmada *operatorv1alpha1.Karmada) DeInitOpt {
-	return func(opt *DeInitOptions) {
-		opt.Name = karmada.GetName()
-		opt.Namespace = karmada.GetNamespace()
+	return func(o *DeInitOptions) {
+		o.Name = karmada.GetName()
+		o.Namespace = karmada.GetNamespace()
 
 		if karmada.Spec.HostCluster != nil {
-			opt.HostCluster = karmada.Spec.HostCluster
+			o.HostCluster = karmada.Spec.HostCluster
 		}
 	}
 }
 
 // NewDeInitOptWithKubeconfig returns a DeInitOpt function to set kubeconfig to DeInitOptions with rest config
 func NewDeInitOptWithKubeconfig(config *rest.Config) DeInitOpt {
-	return func(options *DeInitOptions) {
-		options.Kubeconfig = config
+	return func(o *DeInitOptions) {
+		o.Kubeconfig = config
 	}
 }
diff --git a/operator/pkg/init.go b/operator/pkg/init.go
index d3e83fde0..24a60926b 100644
--- a/operator/pkg/init.go
+++ b/operator/pkg/init.go
@@ -37,7 +37,7 @@ type InitOptions struct {
 }
 
 // InitOpt defines a type of function to set InitOptions values.
-type InitOpt func(opt *InitOptions)
+type InitOpt func(o *InitOptions)
 
 var _ tasks.InitData = &initData{}
 
@@ -234,16 +234,16 @@ func defaultJobInitOptions() *InitOptions {
 
 // NewInitOptWithKarmada returns a InitOpt function to initialize InitOptions with karmada resource
 func NewInitOptWithKarmada(karmada *operatorv1alpha1.Karmada) InitOpt {
-	return func(opt *InitOptions) {
-		opt.Karmada = karmada
-		opt.Name = karmada.GetName()
-		opt.Namespace = karmada.GetNamespace()
+	return func(o *InitOptions) {
+		o.Karmada = karmada
+		o.Name = karmada.GetName()
+		o.Namespace = karmada.GetNamespace()
 	}
 }
 
 // NewInitOptWithKubeconfig returns a InitOpt function to set kubeconfig to InitOptions with rest config
 func NewInitOptWithKubeconfig(config *rest.Config) InitOpt {
-	return func(options *InitOptions) {
-		options.Kubeconfig = config
+	return func(o *InitOptions) {
+		o.Kubeconfig = config
 	}
 }