diff --git a/[refs] b/[refs]
index 47265378a559..9e4997e7f169 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 0db1a7bc00216a981d0b7056627ad8682f4f0636
+refs/heads/master: ef4f30f54e265c2f6f9ac9eda4db158a4e16050b
diff --git a/trunk/arch/x86/kernel/cpu/perf_event_p4.c b/trunk/arch/x86/kernel/cpu/perf_event_p4.c
index 02f072830237..87e1803e67a6 100644
--- a/trunk/arch/x86/kernel/cpu/perf_event_p4.c
+++ b/trunk/arch/x86/kernel/cpu/perf_event_p4.c
@@ -473,7 +473,7 @@ static inline int p4_pmu_clear_cccr_ovf(struct hw_perf_event *hwc)
 	rdmsr(hwc->config_base + hwc->idx, low, high);
 
 	/* we need to check high bit for unflagged overflows */
-	if ((low & P4_CCCR_OVF) || (high & (1 << 31))) {
+	if ((low & P4_CCCR_OVF) || !(high & (1 << 31))) {
 		overflow = 1;
 		(void)checking_wrmsrl(hwc->config_base + hwc->idx,
 			((u64)low) & ~P4_CCCR_OVF);