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Date: Mon, 14 Sep 2009 20:04:03 GMT
From: tip-bot for Thomas Gleixner <tglx@linutronix.de>
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       schwidefsky@de.ibm.com, tglx@linutronix.de
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To: linux-tip-commits@vger.kernel.org
Subject: [tip:timers/core] clocksource: clocksource_select must be called with mutex locked
Message-ID: <tip-e6c733050faa93ce616bfedccd279ab12cffdd7b@git.kernel.org>
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Commit-ID:  e6c733050faa93ce616bfedccd279ab12cffdd7b
Gitweb:     http://git.kernel.org/tip/e6c733050faa93ce616bfedccd279ab12cffdd7b
Author:     Thomas Gleixner <tglx@linutronix.de>
AuthorDate: Mon, 14 Sep 2009 19:51:11 +0200
Committer:  Thomas Gleixner <tglx@linutronix.de>
CommitDate: Mon, 14 Sep 2009 21:59:32 +0200

clocksource: clocksource_select must be called with mutex locked

The callers of clocksource_select must hold clocksource_mutex to
protect the clocksource_list.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
LKML-Reference: <new-submission>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>


---
 kernel/time/clocksource.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 5697155..2c2e5ba 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -471,7 +471,9 @@ static void clocksource_select(void)
 static int __init clocksource_done_booting(void)
 {
 	finished_booting = 1;
+	mutex_lock(&clocksource_mutex);
 	clocksource_select();
+	mutex_unlock(&clocksource_mutex);
 	return 0;
 }
 fs_initcall(clocksource_done_booting);