lkml.org 
[lkml]   [2009]   [Dec]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH] perf_event: fix perf_swevent_hrtimer()
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


\
 
 \ /
  Last update: 2009-12-10 05:19    [from the cache]
©2003-2011 Jasper Spaans