From: Dave Jones <davej@redhat.com>
Date: Sun, 12 Jun 2011 20:35:28 +0000 (-0400)
Subject: Remove cpufreq_stats sysfs entries on module unload.
X-Git-Tag: v2.6.34.12~119
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d53072db239de81ccd71292cc08bdaf682814632;p=karo-tx-linux.git

Remove cpufreq_stats sysfs entries on module unload.

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 <davej@redhat.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---

diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index 4f1b8de2c9f3..7c7a1e481c0d 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -388,6 +388,7 @@ static void __exit cpufreq_stats_exit(void)
 	unregister_hotcpu_notifier(&cpufreq_stat_cpu_notifier);
 	for_each_online_cpu(cpu) {
 		cpufreq_stats_free_table(cpu);
+		cpufreq_stats_free_sysfs(cpu);
 	}
 }