IopFindPassiveInterruptBlock

__int64 __fastcall IopFindPassiveInterruptBlock(int a1){
  __int64 PassiveInterruptBlockLocked; 
  UINT8 OldIrql; 
  OldIrql = 0;
  IopAcquireGlobalPassiveInterruptListLock(&OldIrql);
  PassiveInterruptBlockLocked = IopFindPassiveInterruptBlockLocked(a1);
  KxReleaseSpinLock(&PassiveInterruptListLock);
  __writecr8(OldIrql);
  return PassiveInterruptBlockLocked;
}

Referenced by:

IoProcessPassiveInterrupts
IopAllocatePassiveInterruptBlock
IopDestroyPassiveInterruptBlock