diff --git a/kernel/events/core.c b/kernel/events/core.c
index c80cee8..260bf8c 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -3275,7 +3275,7 @@
 	return val;
 }
 
-static u64 perf_event_read(struct perf_event *event)
+static void perf_event_read(struct perf_event *event)
 {
 	/*
 	 * If event is enabled and currently active on a CPU, update the
@@ -3301,8 +3301,6 @@
 		update_event_times(event);
 		raw_spin_unlock_irqrestore(&ctx->lock, flags);
 	}
-
-	return perf_event_count(event);
 }
 
 /*
@@ -3818,14 +3816,18 @@
 	*running = 0;
 
 	mutex_lock(&event->child_mutex);
-	total += perf_event_read(event);
+
+	perf_event_read(event);
+	total += perf_event_count(event);
+
 	*enabled += event->total_time_enabled +
 			atomic64_read(&event->child_total_time_enabled);
 	*running += event->total_time_running +
 			atomic64_read(&event->child_total_time_running);
 
 	list_for_each_entry(child, &event->child_list, child_list) {
-		total += perf_event_read(child);
+		perf_event_read(child);
+		total += perf_event_count(child);
 		*enabled += child->total_time_enabled;
 		*running += child->total_time_running;
 	}
@@ -3985,7 +3987,7 @@
 
 static void _perf_event_reset(struct perf_event *event)
 {
-	(void)perf_event_read(event);
+	perf_event_read(event);
 	local64_set(&event->count, 0);
 	perf_event_update_userpage(event);
 }