linux-kernel - [tip:perf/urgent] perf_event: Fix variable initialization in other codepaths

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Date:	Thu, 10 Dec 2009 16:24:32 GMT
From:	tip-bot for Xiao Guangrong <xiaoguangrong@...fujitsu.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, paulus@...ba.org, hpa@...or.com,
	mingo@...hat.com, peterz@...radead.org,
	xiaoguangrong@...fujitsu.com, fweisbec@...il.com,
	tglx@...utronix.de, mingo@...e.hu
Subject: [tip:perf/urgent] perf_event: Fix variable initialization in other codepaths

Commit-ID:  5e855db5d8fec44e6604eb245aa9077bbd3f0d05
Gitweb:     http://git.kernel.org/tip/5e855db5d8fec44e6604eb245aa9077bbd3f0d05
Author:     Xiao Guangrong <xiaoguangrong@...fujitsu.com>
AuthorDate: Thu, 10 Dec 2009 17:08:54 +0800
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Thu, 10 Dec 2009 17:23:02 +0100

perf_event: Fix variable initialization in other codepaths

Signed-off-by: Xiao Guangrong <xiaoguangrong@...fujitsu.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Paul Mackerras <paulus@...ba.org>
LKML-Reference: <4B20BAA6.7010609@...fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 arch/x86/kernel/cpu/perf_event.c |    4 ++++
 kernel/perf_event.c              |    1 +
 2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index d35f260..1342f23 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -1632,6 +1632,7 @@ static void intel_pmu_drain_bts_buffer(struct cpu_hw_events *cpuc)
 
 	data.period	= event->hw.last_period;
 	data.addr	= 0;
+	data.raw	= NULL;
 	regs.ip		= 0;
 
 	/*
@@ -1749,6 +1750,7 @@ static int p6_pmu_handle_irq(struct pt_regs *regs)
 	u64 val;
 
 	data.addr = 0;
+	data.raw = NULL;
 
 	cpuc = &__get_cpu_var(cpu_hw_events);
 
@@ -1794,6 +1796,7 @@ static int intel_pmu_handle_irq(struct pt_regs *regs)
 	u64 ack, status;
 
 	data.addr = 0;
+	data.raw = NULL;
 
 	cpuc = &__get_cpu_var(cpu_hw_events);
 
@@ -1857,6 +1860,7 @@ static int amd_pmu_handle_irq(struct pt_regs *regs)
 	u64 val;
 
 	data.addr = 0;
+	data.raw = NULL;
 
 	cpuc = &__get_cpu_var(cpu_hw_events);
 
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 3a5d6c4..d891ec4 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -4300,6 +4300,7 @@ void perf_bp_event(struct perf_event *bp, void *data)
 	struct perf_sample_data sample;
 	struct pt_regs *regs = data;
 
+	sample.raw = NULL;
 	sample.addr = bp->attr.bp_addr;
 
 	if (!perf_exclude_event(bp, regs))
--
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