diff
3 	struct ffs_io_data *io_data = container_of(work, struct ffs_io_data,
4 						   work);
+ 	if (!io_data->is_valid) {
+ 		pr_err("io_data is no longer valid\n");
+ 		return;
+ 	}
6 	bool kiocb_has_eventfd = io_data->kiocb->ki_flags & IOCB_EVENTFD;
