unsigned long active_count;
        ktime_t active_time;
        ktime_t prevent_sleep_time;
-       int ret;
 
        spin_lock_irqsave(&ws->lock, flags);
 
                active_time = ktime_set(0, 0);
        }
 
-       ret = seq_printf(m, "%-12s\t%lu\t\t%lu\t\t%lu\t\t%lu\t\t"
-                       "%lld\t\t%lld\t\t%lld\t\t%lld\t\t%lld\n",
-                       ws->name, active_count, ws->event_count,
-                       ws->wakeup_count, ws->expire_count,
-                       ktime_to_ms(active_time), ktime_to_ms(total_time),
-                       ktime_to_ms(max_time), ktime_to_ms(ws->last_time),
-                       ktime_to_ms(prevent_sleep_time));
+       seq_printf(m, "%-12s\t%lu\t\t%lu\t\t%lu\t\t%lu\t\t%lld\t\t%lld\t\t%lld\t\t%lld\t\t%lld\n",
+                  ws->name, active_count, ws->event_count,
+                  ws->wakeup_count, ws->expire_count,
+                  ktime_to_ms(active_time), ktime_to_ms(total_time),
+                  ktime_to_ms(max_time), ktime_to_ms(ws->last_time),
+                  ktime_to_ms(prevent_sleep_time));
 
        spin_unlock_irqrestore(&ws->lock, flags);
 
-       return ret;
+       return 0;
 }
 
 /**