iommufd_object_remove
int iommufd_object_remove(struct iommufd_ctx *ictx,
ret = iommufd_object_remove(ictx, obj, obj->id, REMOVE_WAIT);
ret = iommufd_object_remove(ictx, obj, obj->id,
iommufd_object_remove(ictx, obj, obj->id, 0);
return iommufd_object_remove(ucmd->ictx, NULL, cmd->id, 0);