ARM: 7809/1: perf: fix event validation for software group leaders

[~andy/linux] / arch / arm / kernel / perf_event.c

diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index d9f5cd4e533fef948f68510e3a6fb3b4996b750b..0500f10b50413428da67219c395572a8fae4752d 100644 (file)
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -253,6 +253,9 @@ validate_event(struct pmu_hw_events *hw_events,
        struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
        struct pmu *leader_pmu = event->group_leader->pmu;
 
+       if (is_software_event(event))
+               return 1;
+
        if (event->pmu != leader_pmu || event->state < PERF_EVENT_STATE_OFF)
                return 1;