message: Additional protection
diff: @@ -368,6 +368,7 @@ void AliMUONTriggerElectronics::LoadMasks(AliMUONCalibrationData* calibData)
  if (cardNumber) // skip empty slots
  {
  AliMUONVCalibParam* localBoardMasks = calibData->LocalTriggerBoardMasks(cardNumber);
  + if (localBoardMasks) {
  for ( Int_t i = 0; i < localBoardMasks->Size(); ++i )
  {
  UShort_t lmask = static_cast<UShort_t>(localBoardMasks->ValueAsInt(i) & 0xFFFF);
  @@ -375,6 +376,7 @@ void AliMUONTriggerElectronics::LoadMasks(AliMUONCalibrationData* calibData)
  }
  }
  }
  + }
  ++irb;
  }
  