[PATCH 3/5] MIPS/Perf-events: Check event state in validate_event()

[Deng-Cheng Zhu <dengcheng.zhu@gmail.com>]

Ignore events that are not for this PMU or are in off/error state.

Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
---
 arch/mips/kernel/perf_event.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/mips/kernel/perf_event.c b/arch/mips/kernel/perf_event.c
index 1ee44a3..9c6442a 100644
--- a/arch/mips/kernel/perf_event.c
+++ b/arch/mips/kernel/perf_event.c
@@ -486,7 +486,7 @@ static int validate_event(struct cpu_hw_events *cpuc,
 {
        struct hw_perf_event fake_hwc = event->hw;
 
-       if (event->pmu && event->pmu != &pmu)
+       if (event->pmu != &pmu || event->state <= PERF_EVENT_STATE_OFF)
                return 0;
 
        return mipspmu->alloc_counter(cpuc, &fake_hwc) >= 0;
-- 
1.7.1