linux-kernel - [PATCH 3/3] perf_event: fix __dsos__write_buildid

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Message-ID: <4B1C7F73.80707@cn.fujitsu.com>
Date:	Mon, 07 Dec 2009 12:07:15 +0800
From:	Xiao Guangrong <xiaoguangrong@...fujitsu.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Frederic Weisbecker <fweisbec@...il.com>,
	Paul Mackerras <paulus@...ba.org>,
	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>,
	Peter Zijlstra <peterz@...radead.org>,
	Li Zefan <lizf@...fujitsu.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 3/3] perf_event: fix __dsos__write_buildid_table()

The remain buff size is 'len - pos->long_name_len - 1', not
'len - pos->long_name_len + 1'

This bug is imported by:
Commit-ID:  7691b1ec2e4a8d4bd88dcf88b29792399ebe1c91
Gitweb:     http://git.kernel.org/tip/7691b1ec2e4a8d4bd88dcf88b29792399ebe1c91
Author:     OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
AuthorDate: Sun, 6 Dec 2009 20:10:49 +0900
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Sun, 6 Dec 2009 18:15:02 +0100

perf tools: Misc small fixes

Signed-off-by: Xiao Guangrong <xiaoguangrong@...fujitsu.com>
---
 tools/perf/util/header.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 08b6759..59a9c0b 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -209,7 +209,7 @@ static int __dsos__write_buildid_table(struct list_head *head, int fd)
 		err = do_write(fd, pos->long_name, pos->long_name_len + 1);
 		if (err < 0)
 			return err;
-		err = do_write(fd, zero_buf, len - pos->long_name_len + 1);
+		err = do_write(fd, zero_buf, len - pos->long_name_len - 1);
 		if (err < 0)
 			return err;
 	}
-- 
1.6.1.2


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