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-rw-r--r--drivers/cpufreq/cpufreq_governor.h2
-rw-r--r--drivers/cpufreq/highbank-cpufreq.c8
-rw-r--r--drivers/cpufreq/intel_pstate.c42
3 files changed, 16 insertions, 36 deletions
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index d2ac91150600..46bde01eee62 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -64,7 +64,7 @@ static void *get_cpu_dbs_info_s(int cpu) \
* dbs: used as a shortform for demand based switching It helps to keep variable
* names smaller, simpler
* cdbs: common dbs
- * on_*: On-demand governor
+ * od_*: On-demand governor
* cs_*: Conservative governor
*/
diff --git a/drivers/cpufreq/highbank-cpufreq.c b/drivers/cpufreq/highbank-cpufreq.c
index 66e3a71b81a3..b61b5a3fad64 100644
--- a/drivers/cpufreq/highbank-cpufreq.c
+++ b/drivers/cpufreq/highbank-cpufreq.c
@@ -28,13 +28,7 @@
static int hb_voltage_change(unsigned int freq)
{
- int i;
- u32 msg[HB_CPUFREQ_IPC_LEN];
-
- msg[0] = HB_CPUFREQ_CHANGE_NOTE;
- msg[1] = freq / 1000000;
- for (i = 2; i < HB_CPUFREQ_IPC_LEN; i++)
- msg[i] = 0;
+ u32 msg[HB_CPUFREQ_IPC_LEN] = {HB_CPUFREQ_CHANGE_NOTE, freq / 1000000};
return pl320_ipc_transmit(msg);
}
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 096fde0ebcb5..f6dd1e761129 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -662,6 +662,9 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy)
cpu = all_cpu_data[policy->cpu];
+ if (!policy->cpuinfo.max_freq)
+ return -ENODEV;
+
intel_pstate_get_min_max(cpu, &min, &max);
limits.min_perf_pct = (policy->min * 100) / policy->cpuinfo.max_freq;
@@ -747,37 +750,11 @@ static struct cpufreq_driver intel_pstate_driver = {
.owner = THIS_MODULE,
};
-static void intel_pstate_exit(void)
-{
- int cpu;
-
- sysfs_remove_group(intel_pstate_kobject,
- &intel_pstate_attr_group);
- debugfs_remove_recursive(debugfs_parent);
-
- cpufreq_unregister_driver(&intel_pstate_driver);
-
- if (!all_cpu_data)
- return;
-
- get_online_cpus();
- for_each_online_cpu(cpu) {
- if (all_cpu_data[cpu]) {
- del_timer_sync(&all_cpu_data[cpu]->timer);
- kfree(all_cpu_data[cpu]);
- }
- }
-
- put_online_cpus();
- vfree(all_cpu_data);
-}
-module_exit(intel_pstate_exit);
-
static int __initdata no_load;
static int __init intel_pstate_init(void)
{
- int rc = 0;
+ int cpu, rc = 0;
const struct x86_cpu_id *id;
if (no_load)
@@ -802,7 +779,16 @@ static int __init intel_pstate_init(void)
intel_pstate_sysfs_expose_params();
return rc;
out:
- intel_pstate_exit();
+ get_online_cpus();
+ for_each_online_cpu(cpu) {
+ if (all_cpu_data[cpu]) {
+ del_timer_sync(&all_cpu_data[cpu]->timer);
+ kfree(all_cpu_data[cpu]);
+ }
+ }
+
+ put_online_cpus();
+ vfree(all_cpu_data);
return -ENODEV;
}
device_initcall(intel_pstate_init);