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cpufreq: return early from __cpufreq_driver_getavg() 

There is no need to do cpufreq_get_cpu() and cpufreq_put_cpu() for drivers that
don't support getavg() routine.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Viresh Kumar 2012-10-24 23:39:48 +02:00 committed by Rafael J. Wysocki
parent 8636fd280e
commit 0676f7f2e7
1 changed files with 4 additions and 2 deletions
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6
drivers/cpufreq/cpufreq.c
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@ -1511,12 +1511,14 @@ int __cpufreq_driver_getavg(struct cpufreq_policy *policy, unsigned int cpu)
{
int ret = 0;
if (!(cpu_online(cpu) && cpufreq_driver->getavg))
return 0;
policy = cpufreq_cpu_get(policy->cpu);
if (!policy)
return -EINVAL;
if (cpu_online(cpu) && cpufreq_driver->getavg)
ret = cpufreq_driver->getavg(policy, cpu);
ret = cpufreq_driver->getavg(policy, cpu);
cpufreq_cpu_put(policy);
return ret;