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authorViresh Kumar <viresh.kumar@linaro.org>2014-12-04 09:42:04 +0530
committerEduardo Valentin <edubezval@gmail.com>2014-12-08 14:09:15 -0400
commit2479bb6443d6a793f896219a34bfab0cc410f0b4 (patch)
treef878dff22f01e913d5fffcd24c0ad1813bf039bb /drivers/thermal
parent97afa4aafb821eca197f678b6552488c46f8c48e (diff)
thermal: cpu_cooling: use cpufreq_dev_list instead of cpufreq_dev_count
As we already have a list of cpufreq_cooling_devices now, lets use it instead of a local counter. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'drivers/thermal')
-rw-r--r--drivers/thermal/cpu_cooling.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c
index d2e6f845fe7d..32ff6dc5efee 100644
--- a/drivers/thermal/cpu_cooling.c
+++ b/drivers/thermal/cpu_cooling.c
@@ -71,8 +71,6 @@ struct cpufreq_cooling_device {
static DEFINE_IDR(cpufreq_idr);
static DEFINE_MUTEX(cooling_cpufreq_lock);
-static unsigned int cpufreq_dev_count;
-
static LIST_HEAD(cpufreq_dev_list);
/**
@@ -419,10 +417,9 @@ __cpufreq_cooling_register(struct device_node *np,
mutex_lock(&cooling_cpufreq_lock);
/* Register the notifier for first cpufreq cooling device */
- if (cpufreq_dev_count == 0)
+ if (list_empty(&cpufreq_dev_list))
cpufreq_register_notifier(&thermal_cpufreq_notifier_block,
CPUFREQ_POLICY_NOTIFIER);
- cpufreq_dev_count++;
list_add(&cpufreq_dev->node, &cpufreq_dev_list);
mutex_unlock(&cooling_cpufreq_lock);
@@ -495,10 +492,9 @@ void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev)
cpufreq_dev = cdev->devdata;
mutex_lock(&cooling_cpufreq_lock);
list_del(&cpufreq_dev->node);
- cpufreq_dev_count--;
/* Unregister the notifier for the last cpufreq cooling device */
- if (cpufreq_dev_count == 0)
+ if (list_empty(&cpufreq_dev_list))
cpufreq_unregister_notifier(&thermal_cpufreq_notifier_block,
CPUFREQ_POLICY_NOTIFIER);
mutex_unlock(&cooling_cpufreq_lock);