[CPUFREQ] Remove cpufreq_stats sysfs entries on module unload.

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>
Cc: stable@kernel.org

diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index b60a4c2..853f92d 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);
        }
 }