linux-kernel - [PATCH] perf: fix perf-lock report coredump

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Date:	Wed, 11 Jul 2012 09:06:55 +0800
From:	Jovi Zhang <bookjovi@...il.com>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] perf: fix perf-lock report coredump

>From 4b363bf16c12b76788fbace1475123b7214ae58d Mon Sep 17 00:00:00 2001
From: Jovi Zhang <bookjovi@...il.com>
Date: Wed, 11 Jul 2012 16:53:57 +0800
Subject: [PATCH] perf: fix perf-lock report coredump

Check sample type event raw_data is existed in perf.data firstly,
then invoke process_raw_event, otherwise it will coredump.

Signed-off-by: Jovi Zhang <bookjovi@...il.com>
---
 tools/perf/builtin-lock.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index fd53319..4b0c230 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -860,7 +860,9 @@ static int process_sample_event(struct perf_tool
*tool __used,
 		return -1;
 	}

-	process_raw_event(sample->raw_data, sample->cpu, sample->time, thread);
+	if (sample->raw_data)
+		process_raw_event(sample->raw_data, sample->cpu, sample->time,
+				  thread);

 	return 0;
 }
-- 
1.7.9.7
--
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