From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755655Ab1G0VtB (ORCPT ); Wed, 27 Jul 2011 17:49:01 -0400 Received: from mga11.intel.com ([192.55.52.93]:36333 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755413Ab1G0Vsx (ORCPT ); Wed, 27 Jul 2011 17:48:53 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.67,279,1309762800"; d="scan'208";a="35258287" From: Andi Kleen References: <20110727247.325703029@firstfloor.org> In-Reply-To: <20110727247.325703029@firstfloor.org> To: davej@redhat.com, gregkh@suse.de, ak@linux.intel.com, linux-kernel@vger.kernel.org, stable@kernel.org, tim.bird@am.sony.com Subject: [PATCH] [54/99] CPUFREQ: Remove cpufreq_stats sysfs entries on module unload. Message-Id: <20110727214853.4A6692403FF@tassilo.jf.intel.com> Date: Wed, 27 Jul 2011 14:48:53 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2.6.35-longterm review patch. If anyone has any objections, please let me know. ------------------ From: Dave Jones commit 13f067537f34456443f61c950cd6dc37d1d5f3ee upstream. cpufreq_stats leaves behind its sysfs entries, which causes a panic when something stumbled across them. (Discovered by unloading cpufreq_stats while powertop was loaded). Signed-off-by: Dave Jones Signed-off-by: Greg Kroah-Hartman Signed-off-by: Andi Kleen --- drivers/cpufreq/cpufreq_stats.c | 1 + 1 file changed, 1 insertion(+) Index: linux-2.6.35.y/drivers/cpufreq/cpufreq_stats.c =================================================================== --- linux-2.6.35.y.orig/drivers/cpufreq/cpufreq_stats.c +++ linux-2.6.35.y/drivers/cpufreq/cpufreq_stats.c @@ -388,6 +388,7 @@ static void __exit cpufreq_stats_exit(vo unregister_hotcpu_notifier(&cpufreq_stat_cpu_notifier); for_each_online_cpu(cpu) { cpufreq_stats_free_table(cpu); + cpufreq_stats_free_sysfs(cpu); } }