diff --git a/internal/cephfs/validator.go b/internal/cephfs/validator.go
index 5d398574a..86c5c970c 100644
--- a/internal/cephfs/validator.go
+++ b/internal/cephfs/validator.go
@@ -84,6 +84,7 @@ func (cs *ControllerServer) validateCreateVolumeRequest(req *csi.CreateVolumeReq
 	return nil
 }
 
+// validateDeleteVolumeRequest validates the Controller DeleteVolume request.
 func (cs *ControllerServer) validateDeleteVolumeRequest() error {
 	if err := cs.Driver.ValidateControllerServiceRequest(
 		csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME); err != nil {