[PATCH V2 22/26] thermal: cpu_cooling: use cpufreq_dev_list instead of cpufreq_dev_count
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: 2014-12-04 04:14:11
Subsystem:
the rest, thermal · Maintainers:
Linus Torvalds, Rafael J. Wysocki, Daniel Lezcano
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> --- drivers/thermal/cpu_cooling.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c
index d2e6f84..32ff6dc 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);
--
2.0.3.693.g996b0fd