pw->want_to_stop = false;
                rc = true;  /* yes, true; see visor_periodic_work_stop() */
                goto unlock;
-       } else if (queue_delayed_work(pw->workqueue, &pw->work,
-                                     pw->jiffy_interval) < 0) {
+       } else if (!queue_delayed_work(pw->workqueue, &pw->work,
+                                      pw->jiffy_interval)) {
                pw->is_scheduled = false;
                rc = false;
                goto unlock;
                goto unlock;
        }
        INIT_DELAYED_WORK(&pw->work, &periodic_work_func);
-       if (queue_delayed_work(pw->workqueue, &pw->work,
-                              pw->jiffy_interval) < 0) {
+       if (!queue_delayed_work(pw->workqueue, &pw->work,
+                               pw->jiffy_interval)) {
                rc = false;
                goto unlock;
        }