diff options
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 57 |
1 files changed, 25 insertions, 32 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 2ed873777fb5..29130aa1b09a 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1818,27 +1818,26 @@ static unsigned int cpufreq_verify_current_freq(struct cpufreq_policy *policy, b */ unsigned int cpufreq_quick_get(unsigned int cpu) { - struct cpufreq_policy *policy; - unsigned int ret_freq = 0; + struct cpufreq_policy *policy __free(put_cpufreq_policy) = NULL; unsigned long flags; read_lock_irqsave(&cpufreq_driver_lock, flags); if (cpufreq_driver && cpufreq_driver->setpolicy && cpufreq_driver->get) { - ret_freq = cpufreq_driver->get(cpu); + unsigned int 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) { - ret_freq = policy->cur; - cpufreq_cpu_put(policy); - } + if (policy) + return policy->cur; - return ret_freq; + return 0; } EXPORT_SYMBOL(cpufreq_quick_get); @@ -1850,15 +1849,13 @@ EXPORT_SYMBOL(cpufreq_quick_get); */ unsigned int cpufreq_quick_get_max(unsigned int cpu) { - struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); - unsigned int ret_freq = 0; + struct cpufreq_policy *policy __free(put_cpufreq_policy); - if (policy) { - ret_freq = policy->max; - cpufreq_cpu_put(policy); - } + policy = cpufreq_cpu_get(cpu); + if (policy) + return policy->max; - return ret_freq; + return 0; } EXPORT_SYMBOL(cpufreq_quick_get_max); @@ -1870,15 +1867,13 @@ EXPORT_SYMBOL(cpufreq_quick_get_max); */ __weak unsigned int cpufreq_get_hw_max_freq(unsigned int cpu) { - struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); - unsigned int ret_freq = 0; + struct cpufreq_policy *policy __free(put_cpufreq_policy); - if (policy) { - ret_freq = policy->cpuinfo.max_freq; - cpufreq_cpu_put(policy); - } + policy = cpufreq_cpu_get(cpu); + if (policy) + return policy->cpuinfo.max_freq; - return ret_freq; + return 0; } EXPORT_SYMBOL(cpufreq_get_hw_max_freq); @@ -1898,20 +1893,18 @@ static unsigned int __cpufreq_get(struct cpufreq_policy *policy) */ unsigned int cpufreq_get(unsigned int cpu) { - struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); - unsigned int ret_freq = 0; + struct cpufreq_policy *policy __free(put_cpufreq_policy); + policy = cpufreq_cpu_get(cpu); if (!policy) return 0; - scoped_guard(cpufreq_policy_read, policy) { - if (cpufreq_driver->get) - ret_freq = __cpufreq_get(policy); - } + guard(cpufreq_policy_read)(policy); - cpufreq_cpu_put(policy); + if (cpufreq_driver->get) + return __cpufreq_get(policy); - return ret_freq; + return 0; } EXPORT_SYMBOL(cpufreq_get); @@ -2566,7 +2559,8 @@ EXPORT_SYMBOL_GPL(cpufreq_unregister_governor); */ int cpufreq_get_policy(struct cpufreq_policy *policy, unsigned int cpu) { - struct cpufreq_policy *cpu_policy; + struct cpufreq_policy *cpu_policy __free(put_cpufreq_policy); + if (!policy) return -EINVAL; @@ -2576,7 +2570,6 @@ int cpufreq_get_policy(struct cpufreq_policy *policy, unsigned int cpu) memcpy(policy, cpu_policy, sizeof(*policy)); - cpufreq_cpu_put(cpu_policy); return 0; } EXPORT_SYMBOL(cpufreq_get_policy); |