NTSTATUS __stdcall IopRemoveRelationFromList(_RELATION_LIST *List, PDEVICE_OBJECT DeviceObject){
unsigned int v2;
_DEVICE_OBJECT_LIST **v3;
_DEVICE_OBJECT_LIST_ENTRY *Result;
v2 = PipDeviceObjectListIndexOf(List->DeviceObjectList, DeviceObject, List->DeviceObjectList->Count, &Result);
if( v2 == -1 )
return -1073741810;
else
return PipDeviceObjectListRemove(*v3, v2);
}