cpufreq: governor: Check transition latecy at init time only

It is not necessary to check the governor's max_transition_latency
attribute every time cpufreq_governor() runs, so check it only if
the event argument is CPUFREQ_GOV_POLICY_INIT.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

drivers/cpufreq/cpufreq.c

@@ -2011,6 +2011,7 @@ static int cpufreq_governor(struct cpufreq_policy *policy, unsigned int event)
 	if (!policy->governor)
 		return -EINVAL;
 
+	if (event == CPUFREQ_GOV_POLICY_INIT) {
 		if (policy->governor->max_transition_latency &&
 		    policy->cpuinfo.transition_latency >
 		    policy->governor->max_transition_latency) {
@@ -2025,9 +2026,9 @@ static int cpufreq_governor(struct cpufreq_policy *policy, unsigned int event)
 			}
 		}
 
-	if (event == CPUFREQ_GOV_POLICY_INIT)
 		if (!try_module_get(policy->governor->owner))
 			return -EINVAL;
+	}
 
 	pr_debug("%s: for CPU %u, event %u\n", __func__, policy->cpu, event);