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path: root/drivers/cpufreq/cpufreq.c
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Diffstat (limited to 'drivers/cpufreq/cpufreq.c')
-rw-r--r--drivers/cpufreq/cpufreq.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 7fce038fa57e..4e07d1f43a43 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -625,7 +625,7 @@ static ssize_t store_scaling_setspeed(struct cpufreq_policy *policy,
625 unsigned int freq = 0; 625 unsigned int freq = 0;
626 unsigned int ret; 626 unsigned int ret;
627 627
628 if (!policy->governor->store_setspeed) 628 if (!policy->governor || !policy->governor->store_setspeed)
629 return -EINVAL; 629 return -EINVAL;
630 630
631 ret = sscanf(buf, "%u", &freq); 631 ret = sscanf(buf, "%u", &freq);
@@ -639,7 +639,7 @@ static ssize_t store_scaling_setspeed(struct cpufreq_policy *policy,
639 639
640static ssize_t show_scaling_setspeed(struct cpufreq_policy *policy, char *buf) 640static ssize_t show_scaling_setspeed(struct cpufreq_policy *policy, char *buf)
641{ 641{
642 if (!policy->governor->show_setspeed) 642 if (!policy->governor || !policy->governor->show_setspeed)
643 return sprintf(buf, "<unsupported>\n"); 643 return sprintf(buf, "<unsupported>\n");
644 644
645 return policy->governor->show_setspeed(policy, buf); 645 return policy->governor->show_setspeed(policy, buf);
@@ -928,13 +928,13 @@ static int cpufreq_add_dev(struct sys_device *sys_dev)
928 policy->user_policy.policy = policy->policy; 928 policy->user_policy.policy = policy->policy;
929 policy->user_policy.governor = policy->governor; 929 policy->user_policy.governor = policy->governor;
930 930
931 unlock_policy_rwsem_write(cpu);
932
933 if (ret) { 931 if (ret) {
934 dprintk("setting policy failed\n"); 932 dprintk("setting policy failed\n");
935 goto err_out_unregister; 933 goto err_out_unregister;
936 } 934 }
937 935
936 unlock_policy_rwsem_write(cpu);
937
938 kobject_uevent(&policy->kobj, KOBJ_ADD); 938 kobject_uevent(&policy->kobj, KOBJ_ADD);
939 module_put(cpufreq_driver->owner); 939 module_put(cpufreq_driver->owner);
940 dprintk("initialization complete\n"); 940 dprintk("initialization complete\n");