PnpDeleteLockedDeviceNodes

__int64 __fastcall PnpDeleteLockedDeviceNodes(
        _DEVICE_OBJECT *a1,
        _RELATION_LIST *a2,
        int a3,
        char a4,
        unsigned int a5,
        NTSTATUS a6,
        __int64 a7,
        __int64 a8){
  NTSTATUS v8; 
  char v9; 
  _DEVICE_OBJECT *v12; 
  unsigned int v13; 
  _DEVICE_OBJECT *v14; 
  _DEVICE_NODE *v15; 
  unsigned int v16; 
  int v17; 
  __int64 v19; 
  char v20; 
  _DEVICE_OBJECT_LIST *DeviceObjectList; 
  NTSTATUS v22; 
  void *DeviceNode; 
  _RELATION_LIST_MARKER Marker; 
  _DEVICE_OBJECT *DeviceObject; 
  _DEVICE_RELATION_LEVEL RelationLevel; 
  char v28; 

  v28 = a4;
  v8 = 0;
  v9 = a4;
  v12 = a1;
  v13 = 0;
  DeviceObject = 0i64;
  RelationLevel = RELATION_LEVEL_REMOVE_EJECT;
  if( a2->Sorted )
  {
    Marker = (_RELATION_LIST_MARKER)1i64;
    while( 1 )
    {
      do
      {
        if( !IopEnumerateRelations(a2, &Marker, &DeviceObject, &RelationLevel, 0i64) )
          return v13;
      }
      while( RelationLevel == RELATION_LEVEL_REMOVE_EJECT && !v9 );
      v14 = DeviceObject;
      v15 = DeviceObject ? (_DEVICE_NODE *)DeviceObject->DeviceObjectExtension->DeviceNode : 0i64;
      if( a5 == 54 )
        break;
      if( DeviceObject == v12 )
      {
        v16 = a5;
LABEL_10:
        v8 = a6;
        goto LABEL_11;
      }
      if( RelationLevel != RELATION_LEVEL_DEPENDENT || (v16 = 51, a3 == 1) )
        v16 = 0;
LABEL_11:
      if( (unsigned int)(a3 - 2) <= 1 )
      {
        PiUpdateGuestAssignedState(v15, 0);
        if( a3 == 2 && (v15->StateFlags & 2) != 0 )
        {
          v8 = 0;
LABEL_27:
          v12 = a1;
          goto LABEL_16;
        }
      }
      v17 = PnpDeleteLockedDeviceNode(v15, a3, v16, v8, a7, a8);
      v8 = 0;
      v13 = v17;
      if( !a3 && a5 == 54 && v17 == -1073740537 )
      {
        PipIsDeviceInDeviceObjectList();
        if( v20 )
          *(_DWORD *)(v19 + 704) |= 2u;
        v13 = 0;
        goto LABEL_27;
      }
      v12 = a1;
      if( v17 < 0 )
      {
        if( (v15->StateFlags & 4) == 0 )
          KeBugCheckEx(0xCAu, (PVOID)0xD, v15, (PVOID)4, 0i64);
        PoFxIdleDevice(v15->PhysicalDeviceObject);
        v15->StateFlags &= ~4u;
        if( Marker.Mode == ENUMERATE_FORWARD && Marker.Counter )
        {
          DeviceObjectList = a2->DeviceObjectList;
          Marker.Mode = ENUMERATE_BACKWARD;
          Marker.Counter = DeviceObjectList->Count - Marker.Counter;
        }
        else
        {
          Marker = (_RELATION_LIST_MARKER)3i64;
        }
        while( IopEnumerateRelations(a2, &Marker, &DeviceObject, 0i64, 0i64) )
        {
          if( v14 != DeviceObject )
          {
            if( DeviceObject )
              DeviceNode = DeviceObject->DeviceObjectExtension->DeviceNode;
            else
              DeviceNode = 0i64;
            PnpDeleteLockedDeviceNode(DeviceNode, 1, 0, v22, a7, a8);
          }
        }
        return(unsigned int)-2147483608;
      }
LABEL_16:
      v9 = v28;
    }
    v16 = 54;
    goto LABEL_10;
  }
  return(unsigned int)-1073741823;
}

Referenced by: