CPUFREQ: 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: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index c31aab02f40a2086bba47d1c3c30ee6228685197..6bbc164caa9e1beb721da7baae13ee3270c69f3d 100644 (file)
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -387,6 +387,7 @@ 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);
        }
 }