diff options
Diffstat (limited to 'drivers/cpufreq/cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 4c7825856eab..f870399f00b1 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1401,9 +1401,17 @@ unsigned int cpufreq_quick_get(unsigned int cpu) { struct cpufreq_policy *policy; unsigned int ret_freq = 0; + unsigned long flags; - if (cpufreq_driver && cpufreq_driver->setpolicy && cpufreq_driver->get) - return cpufreq_driver->get(cpu); + read_lock_irqsave(&cpufreq_driver_lock, flags); + + if (cpufreq_driver && cpufreq_driver->setpolicy && cpufreq_driver->get) { + ret_freq = cpufreq_driver->get(cpu); + read_unlock_irqrestore(&cpufreq_driver_lock, flags); + return ret_freq; + } + + read_unlock_irqrestore(&cpufreq_driver_lock, flags); policy = cpufreq_cpu_get(cpu); if (policy) { |