Merge tag 'v2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[mv-sheeva.git] / drivers / cpufreq / cpufreq.c

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index c63a438237444a0e35fa05bdef9d0d232839c463..5cb4d09919d67f83d99f8bfb837e64c8a660bb46 100644 (file)
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -355,6 +355,7 @@ void cpufreq_notify_transition(struct cpufreq_freqs *freqs, unsigned int state)
                dprintk("FREQ: %lu - CPU: %lu", (unsigned long)freqs->new,
                        (unsigned long)freqs->cpu);
                trace_power_frequency(POWER_PSTATE, freqs->new, freqs->cpu);
+               trace_cpu_frequency(freqs->new, freqs->cpu);
                srcu_notifier_call_chain(&cpufreq_transition_notifier_list,
                                CPUFREQ_POSTCHANGE, freqs);
                if (likely(policy) && likely(policy->cpu == freqs->cpu))
@@ -1918,8 +1919,10 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
 
        ret = sysdev_driver_register(&cpu_sysdev_class,
                                        &cpufreq_sysdev_driver);
+       if (ret)
+               goto err_null_driver;
 
-       if ((!ret) && !(cpufreq_driver->flags & CPUFREQ_STICKY)) {
+       if (!(cpufreq_driver->flags & CPUFREQ_STICKY)) {
                int i;
                ret = -ENODEV;
 
@@ -1934,21 +1937,22 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
                if (ret) {
                        dprintk("no CPU initialized for driver %s\n",
                                                        driver_data->name);
-                       sysdev_driver_unregister(&cpu_sysdev_class,
-                                               &cpufreq_sysdev_driver);
-
-                       spin_lock_irqsave(&cpufreq_driver_lock, flags);
-                       cpufreq_driver = NULL;
-                       spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
+                       goto err_sysdev_unreg;
                }
        }
 
-       if (!ret) {
-               register_hotcpu_notifier(&cpufreq_cpu_notifier);
-               dprintk("driver %s up and running\n", driver_data->name);
-               cpufreq_debug_enable_ratelimit();
-       }
+       register_hotcpu_notifier(&cpufreq_cpu_notifier);
+       dprintk("driver %s up and running\n", driver_data->name);
+       cpufreq_debug_enable_ratelimit();
 
+       return 0;
+err_sysdev_unreg:
+       sysdev_driver_unregister(&cpu_sysdev_class,
+                       &cpufreq_sysdev_driver);
+err_null_driver:
+       spin_lock_irqsave(&cpufreq_driver_lock, flags);
+       cpufreq_driver = NULL;
+       spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
        return ret;
 }
 EXPORT_SYMBOL_GPL(cpufreq_register_driver);