linux-kernel - [tip:core/locking] liblockdep: Fix the AA locking test

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Message-ID: <tip-47283ee709d09e43cff7feaf8bb9ff24fb9e7fd5@git.kernel.org>
Date:	Mon, 11 Feb 2013 04:24:45 -0800
From:	tip-bot for Sasha Levin <sasha.levin@...cle.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, sasha.levin@...cle.com,
	hpa@...or.com, mingo@...nel.org, a.p.zijlstra@...llo.nl,
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	tglx@...utronix.de
Subject: [tip:core/locking] liblockdep: Fix the AA locking test

Commit-ID:  47283ee709d09e43cff7feaf8bb9ff24fb9e7fd5
Gitweb:     http://git.kernel.org/tip/47283ee709d09e43cff7feaf8bb9ff24fb9e7fd5
Author:     Sasha Levin <sasha.levin@...cle.com>
AuthorDate: Sat, 9 Feb 2013 19:39:34 -0500
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Mon, 11 Feb 2013 10:12:37 +0100

liblockdep: Fix the AA locking test

We were accidently unlocking the dummy mutex in the test, which
meant that we were testing unlock balance instead of AA
deadlock.

Signed-off-by: Sasha Levin <sasha.levin@...cle.com>
Cc: jamie.iles@...cle.com
Cc: penberg@...nel.org
Cc: acme@...stprotocols.net
Cc: paulus@...ba.org
Cc: namhyung@...nel.org
Cc: peterz@...radead.org
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Thomas Gleixner <tglx@...utronix.de>
Link: http://lkml.kernel.org/r/1360456781-32462-4-git-send-email-sasha.levin@oracle.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 tools/lib/lockdep/tests/AA.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/lib/lockdep/tests/AA.c b/tools/lib/lockdep/tests/AA.c
index a443e65..0f782ff 100644
--- a/tools/lib/lockdep/tests/AA.c
+++ b/tools/lib/lockdep/tests/AA.c
@@ -8,6 +8,6 @@ void main(void)
 	pthread_mutex_init(&b, NULL);
 
 	pthread_mutex_lock(&a);
-	pthread_mutex_unlock(&b);
+	pthread_mutex_lock(&b);
 	pthread_mutex_lock(&a);
 }
--
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