summaryrefslogtreecommitdiff
path: root/drivers/cpufreq/cpufreq_governor.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/cpufreq/cpufreq_governor.c')
-rw-r--r--drivers/cpufreq/cpufreq_governor.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index 443442df113b..5af40ad82d23 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -255,6 +255,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
if (have_governor_per_policy()) {
WARN_ON(dbs_data);
} else if (dbs_data) {
+ dbs_data->usage_count++;
policy->governor_data = dbs_data;
return 0;
}
@@ -266,6 +267,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
}
dbs_data->cdata = cdata;
+ dbs_data->usage_count = 1;
rc = cdata->init(dbs_data);
if (rc) {
pr_err("%s: POLICY_INIT: init() failed\n", __func__);
@@ -294,7 +296,8 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
set_sampling_rate(dbs_data, max(dbs_data->min_sampling_rate,
latency * LATENCY_MULTIPLIER));
- if (dbs_data->cdata->governor == GOV_CONSERVATIVE) {
+ if ((cdata->governor == GOV_CONSERVATIVE) &&
+ (!policy->governor->initialized)) {
struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
cpufreq_register_notifier(cs_ops->notifier_block,
@@ -306,12 +309,12 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
return 0;
case CPUFREQ_GOV_POLICY_EXIT:
- if ((policy->governor->initialized == 1) ||
- have_governor_per_policy()) {
+ if (!--dbs_data->usage_count) {
sysfs_remove_group(get_governor_parent_kobj(policy),
get_sysfs_attr(dbs_data));
- if (dbs_data->cdata->governor == GOV_CONSERVATIVE) {
+ if ((dbs_data->cdata->governor == GOV_CONSERVATIVE) &&
+ (policy->governor->initialized == 1)) {
struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
cpufreq_unregister_notifier(cs_ops->notifier_block,