diff --git a/[refs] b/[refs]
index dbfdb0473010..835ee70e29c5 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a29aa8a7ff93e4196d558036928597e68337dd8d
+refs/heads/master: 4b7bfd0d276da3a006d37e85d3cf900d7a14ae2a
diff --git a/trunk/arch/x86/kernel/cpu/perf_counter.c b/trunk/arch/x86/kernel/cpu/perf_counter.c
index f4d59d4cf3f1..a8a53abd706d 100644
--- a/trunk/arch/x86/kernel/cpu/perf_counter.c
+++ b/trunk/arch/x86/kernel/cpu/perf_counter.c
@@ -132,7 +132,7 @@ static u64 amd_pmu_raw_event(u64 event)
  * Can only be executed on the CPU where the counter is active.
  * Returns the delta events processed.
  */
-static void
+static u64
 x86_perf_counter_update(struct perf_counter *counter,
 			struct hw_perf_counter *hwc, int idx)
 {
@@ -165,6 +165,8 @@ x86_perf_counter_update(struct perf_counter *counter,
 
 	atomic64_add(delta, &counter->count);
 	atomic64_sub(delta, &hwc->period_left);
+
+	return new_raw_count;
 }
 
 static atomic_t num_counters;
@@ -785,8 +787,7 @@ static int amd_pmu_handle_irq(struct pt_regs *regs, int nmi)
 			continue;
 		counter = cpuc->counters[idx];
 		hwc = &counter->hw;
-		x86_perf_counter_update(counter, hwc, idx);
-		val = atomic64_read(&hwc->prev_count);
+		val = x86_perf_counter_update(counter, hwc, idx);
 		if (val & (1ULL << (x86_pmu.counter_bits - 1)))
 			continue;
 		/* counter overflow */