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authorJacob Shin <jacob.shin@amd.com>2013-06-27 22:02:12 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-06-27 22:02:12 +0200
commit419e172145cf6c51d436a8bf4afcd17511f0ff79 (patch)
treeddf65b39e5096a170f102b9b46e7e11b12cf600c /drivers/cpufreq
parent874e628f8b34cf4b3b7f471063841647c221f453 (diff)
downloadop-kernel-dev-419e172145cf6c51d436a8bf4afcd17511f0ff79.zip
op-kernel-dev-419e172145cf6c51d436a8bf4afcd17511f0ff79.tar.gz
cpufreq: don't leave stale policy pointer in cdbs->cur_policy
Clear ->cur_policy when stopping a governor, or the ->cur_policy pointer may be stale on systems with have_governor_per_policy when a new policy is allocated due to CPU hotplug offline/online. [rjw: Changelog] Suggested-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Jacob Shin <jacob.shin@amd.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq')
-rw-r--r--drivers/cpufreq/cpufreq_governor.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index a849b2d..4645876 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -366,6 +366,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
mutex_lock(&dbs_data->mutex);
mutex_destroy(&cpu_cdbs->timer_mutex);
+ cpu_cdbs->cur_policy = NULL;
mutex_unlock(&dbs_data->mutex);
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