code: func validateCSINodeSpec(
  	spec *storage.CSINodeSpec, fldPath *field.Path) field.ErrorList {
  	allErrs := field.ErrorList{}
  	allErrs = append(allErrs, validateCSINodeDrivers(spec.Drivers, fldPath.Child("drivers"))...)
  	return allErrs
  }
docs: // ValidateCSINodeSpec tests that the specified CSINodeSpec has valid data.