Messages in this thread Patch in this message | | | Date | Thu, 10 Dec 2009 12:14:40 +0800 | From | Xiao Guangrong <> | Subject | [PATCH] perf_event: fix perf_swevent_hrtimer() |
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fix: [<c0477471>] ? printk+0x1d/0x24 [<c01c98f9>] ? perf_prepare_sample+0x269/0x280 [<c0149231>] warn_slowpath_common+0x71/0xd0 [<c01c98f9>] ? perf_prepare_sample+0x269/0x280 [<c01492aa>] warn_slowpath_null+0x1a/0x20 [<c01c98f9>] perf_prepare_sample+0x269/0x280 [<c016e9f3>] ? cpu_clock+0x53/0x90 [<c01cc368>] __perf_event_overflow+0x2a8/0x300 [<c01ccc3b>] perf_event_overflow+0x1b/0x30 [<c01ccccf>] perf_swevent_hrtimer+0x7f/0x120
This is because 'data' variable not initialize.
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> --- kernel/perf_event.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/kernel/perf_event.c b/kernel/perf_event.c index 0bd0f67..41c2dde 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -4009,7 +4009,7 @@ static enum hrtimer_restart perf_swevent_hrtimer(struct hrtimer *hrtimer) event = container_of(hrtimer, struct perf_event, hw.hrtimer); event->pmu->read(event); - data.addr = 0; + memset(&data, 0, sizeof(data)); data.period = event->hw.last_period; regs = get_irq_regs(); /* -- 1.6.1.2
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