diff --git a/pkg/apis/core/validation/validation.go b/pkg/apis/core/validation/validation.go
index 5dffafc42c..b5e7ab5ec3 100644
--- a/pkg/apis/core/validation/validation.go
+++ b/pkg/apis/core/validation/validation.go
@@ -2082,13 +2082,6 @@ func validateObjectFieldSelector(fs *core.ObjectFieldSelector, expressions *sets
 	return allErrs
 }
 
-func fsResourceIsEphemeralStorage(resource string) bool {
-	if resource == "limits.ephemeral-storage" || resource == "requests.ephemeral-storage" {
-		return true
-	}
-	return false
-}
-
 func validateContainerResourceFieldSelector(fs *core.ResourceFieldSelector, expressions *sets.String, fldPath *field.Path, volume bool) field.ErrorList {
 	allErrs := field.ErrorList{}
 
@@ -4014,7 +4007,7 @@ func ValidateReadOnlyPersistentDisks(volumes []core.Volume, fldPath *field.Path)
 		vol := &volumes[i]
 		idxPath := fldPath.Index(i)
 		if vol.GCEPersistentDisk != nil {
-			if vol.GCEPersistentDisk.ReadOnly == false {
+			if !vol.GCEPersistentDisk.ReadOnly {
 				allErrs = append(allErrs, field.Invalid(idxPath.Child("gcePersistentDisk", "readOnly"), false, "must be true for replicated pods > 1; GCE PD can only be mounted on multiple machines if it is read-only"))
 			}
 		}
@@ -4360,15 +4353,6 @@ func validateContainerResourceName(value string, fldPath *field.Path) field.Erro
 	return allErrs
 }
 
-// isLocalStorageResource checks whether the resource is local ephemeral storage
-func isLocalStorageResource(name string) bool {
-	if name == string(core.ResourceEphemeralStorage) || name == string(core.ResourceRequestsEphemeralStorage) ||
-		name == string(core.ResourceLimitsEphemeralStorage) {
-		return true
-	}
-	return false
-}
-
 // Validate resource names that can go in a resource quota
 // Refer to docs/design/resources.md for more details.
 func ValidateResourceQuotaResourceName(value string, fldPath *field.Path) field.ErrorList {
@@ -4975,10 +4959,7 @@ func ValidateNamespace(namespace *core.Namespace) field.ErrorList {
 // Validate finalizer names
 func validateFinalizerName(stringValue string, fldPath *field.Path) field.ErrorList {
 	allErrs := apimachineryvalidation.ValidateFinalizerName(stringValue, fldPath)
-	for _, err := range validateKubeFinalizerName(stringValue, fldPath) {
-		allErrs = append(allErrs, err)
-	}
-
+	allErrs = append(allErrs, validateKubeFinalizerName(stringValue, fldPath)...)
 	return allErrs
 }