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-rw-r--r--drivers/cpufreq/cpufreq.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 37af929746a..f149e14f77c 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1709,8 +1709,9 @@ static int __cpufreq_governor(struct cpufreq_policy *policy,
}
}
- if (!try_module_get(policy->governor->owner))
- return -EINVAL;
+ if (event == CPUFREQ_GOV_POLICY_INIT)
+ if (!try_module_get(policy->governor->owner))
+ return -EINVAL;
pr_debug("__cpufreq_governor for CPU %u, event %u\n",
policy->cpu, event);
@@ -1719,6 +1720,8 @@ static int __cpufreq_governor(struct cpufreq_policy *policy,
if ((!policy->governor_enabled && (event == CPUFREQ_GOV_STOP)) ||
(policy->governor_enabled && (event == CPUFREQ_GOV_START))) {
mutex_unlock(&cpufreq_governor_lock);
+ if (event == CPUFREQ_GOV_POLICY_INIT)
+ module_put(policy->governor->owner);
return -EBUSY;
}
@@ -1746,11 +1749,8 @@ static int __cpufreq_governor(struct cpufreq_policy *policy,
mutex_unlock(&cpufreq_governor_lock);
}
- /* we keep one module reference alive for
- each CPU governed by this CPU */
- if ((event != CPUFREQ_GOV_START) || ret)
- module_put(policy->governor->owner);
- if ((event == CPUFREQ_GOV_STOP) && !ret)
+ if (((event == CPUFREQ_GOV_POLICY_INIT) && ret) ||
+ ((event == CPUFREQ_GOV_POLICY_EXIT) && !ret))
module_put(policy->governor->owner);
return ret;