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authorTu, Xiaobing <xiaobing.tu@intel.com>2012-10-23 01:03:00 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-03-14 11:29:51 -0700
commitf39e4f133d52fad48f5c823b6c8a867caf101677 (patch)
tree11fb57f56fb2444218c217f865350dc375a0a543
parentcc6de71e8c24edbad16e45c011013d40eb903ffd (diff)
downloadlinux-rt-f39e4f133d52fad48f5c823b6c8a867caf101677.tar.gz
Fix memory leak in cpufreq stats.
commit e37736777254ce1abc85493a5cacbefe5983b896 upstream. When system enters sleep, non-boot CPUs will be disabled. Cpufreq stats sysfs is created when the CPU is up, but it is not freed when the CPU is going down. This will cause memory leak. Signed-off-by: xiaobing tu <xiaobing.tu@intel.com> Signed-off-by: guifang tang <guifang.tang@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Colin Cross <ccross@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/cpufreq/cpufreq_stats.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index b40ee1403be9..399831690fed 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -328,6 +328,7 @@ static int __cpuinit cpufreq_stat_cpu_callback(struct notifier_block *nfb,
cpufreq_update_policy(cpu);
break;
case CPU_DOWN_PREPARE:
+ case CPU_DOWN_PREPARE_FROZEN:
cpufreq_stats_free_sysfs(cpu);
break;
case CPU_DEAD: