IopIncrementDeviceObjectRefCount

NTSTATUS __stdcall IopIncrementDeviceObjectRefCount(_DEVICE_OBJECT *DeviceObject, UINT8 LockRequired){
  unsigned __int8 CurrentIrql; 
  KSPIN_LOCK_QUEUE *v4; 
  KSPIN_LOCK_QUEUE *v5; 
  NTSTATUS v6; 
  _KSPIN_LOCK_QUEUE *v7; 
  _KSPIN_LOCK_QUEUE *Next; 
  void *v10; 
  if( LockRequired )
  {
    CurrentIrql = KeGetCurrentIrql();
    __writecr8(2ui64);
    v4 = (KSPIN_LOCK_QUEUE *)(*((_QWORD *)KeGetPcr() + 5) + 160i64);
    v5 = (KSPIN_LOCK_QUEUE *)_InterlockedExchange64((volatile __int64 *)v4->Lock, (__int64)v4);
    if( v5 )
      KxWaitForLockOwnerShip(v4, v5);
    v6 = ++*((_DWORD *)DeviceObject + 1);
    v7 = (_KSPIN_LOCK_QUEUE *)(*((_QWORD *)KeGetPcr() + 5) + 160i64);
    _m_prefetchw(v7);
    Next = v7->Next;
    if( !v7->Next )
    {
      if( v7 == (_KSPIN_LOCK_QUEUE *)_InterlockedCompareExchange64(
                                        (volatile signed __int64 *)v7->Lock,
                                        0i64,
                                        (signed __int64)v7) )
      {
LABEL_6:
        __writecr8(CurrentIrql);
        goto LABEL_7;
      }
      Next = KxWaitForLockChainValid(v7);
    }
    v7->Next = 0i64;
    _InterlockedXor64((volatile signed __int64 *)&Next->Lock, 1ui64);
    goto LABEL_6;
  }
  v6 = ++*((_DWORD *)DeviceObject + 1);
LABEL_7:
  if( v6 <= 0 )
  {
    v10 = (void *)*((_QWORD *)DeviceObject + 1);
    if( v10 )
    {
      IoAddTriageDumpDataBlock(v10, 0x150ui64);
      IoAddTriageDumpDataBlock(
        *(PVOID *)(*((_QWORD *)DeviceObject + 1) + 64i64),
        *(unsigned __int16 *)(*((_QWORD *)DeviceObject + 1) + 56i64));
    }
    KeBugCheckEx(0x18u, 0i64, (ULONG_PTR)DeviceObject, 6ui64, *((int *)DeviceObject + 1));
  }
  return v6;
}

Referenced by: