diff --git a/cmd/scheduler/options/options.go b/cmd/scheduler/options/options.go
index 8837ffd7fa1..d175cb9f7c5 100644
--- a/cmd/scheduler/options/options.go
+++ b/cmd/scheduler/options/options.go
@@ -14,6 +14,7 @@ limitations under the License.
 package options
 
 import (
+	"errors"
 	"fmt"
 	"strconv"
 	"strings"
@@ -139,7 +140,7 @@ func New(origArgs []string) (*Options, error) {
 
 	if fs.Changed("kubeconfig") {
 		if opts.Mode != string(modes.KubernetesMode) {
-			return nil, fmt.Errorf("kubeconfig flag is only valid in --mode=kubernetes")
+			return nil, errors.New("kubeconfig flag is only valid in --mode=kubernetes")
 		}
 		opts.KubeConfig = &opts.kubeconfig
 	}
diff --git a/pkg/scheduler/server/internal/controller/controller.go b/pkg/scheduler/server/internal/controller/controller.go
index 85c9d8352d7..5b67d9d5449 100644
--- a/pkg/scheduler/server/internal/controller/controller.go
+++ b/pkg/scheduler/server/internal/controller/controller.go
@@ -15,6 +15,7 @@ package controller
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"os"
 
@@ -98,7 +99,7 @@ func New(opts Options) (concurrency.Runner, error) {
 				return fmt.Errorf("unable to get informer: %w", err)
 			}
 			if !mgr.GetCache().WaitForCacheSync(ctx) {
-				return fmt.Errorf("unable to sync cache")
+				return errors.New("unable to sync cache")
 			}
 			hzTarget.Ready()
 			log.Info("Controller ready")
diff --git a/pkg/scheduler/server/internal/controller/namespace_test.go b/pkg/scheduler/server/internal/controller/namespace_test.go
index 51d5a899a30..76ee2919229 100644
--- a/pkg/scheduler/server/internal/controller/namespace_test.go
+++ b/pkg/scheduler/server/internal/controller/namespace_test.go
@@ -63,7 +63,6 @@ func Test_Reconcile(t *testing.T) {
 
 	req := ctrl.Request{NamespacedName: types.NamespacedName{Name: "test-ns"}}
 	for name, test := range tests {
-		test := test
 		t.Run(name, func(t *testing.T) {
 			t.Parallel()
 
diff --git a/tests/integration/framework/process/scheduler/scheduler.go b/tests/integration/framework/process/scheduler/scheduler.go
index 132ab77e81d..2d0475d4bc7 100644
--- a/tests/integration/framework/process/scheduler/scheduler.go
+++ b/tests/integration/framework/process/scheduler/scheduler.go
@@ -347,7 +347,7 @@ func (s *Scheduler) ETCDClient(t *testing.T) *clientv3.Client {
 	t.Helper()
 
 	client, err := clientv3.New(clientv3.Config{
-		Endpoints:   []string{fmt.Sprintf("127.0.0.1:%s", s.EtcdClientPort())},
+		Endpoints:   []string{"127.0.0.1:" + s.EtcdClientPort()},
 		DialTimeout: 40 * time.Second,
 	})
 	require.NoError(t, err)