fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / drivers / cpufreq / cpufreq_userspace.c

diff --git a/drivers/cpufreq/cpufreq_userspace.c b/drivers/cpufreq/cpufreq_userspace.c
index a06c204..2a4eb0b 100644 (file)
--- a/drivers/cpufreq/cpufreq_userspace.c
+++ b/drivers/cpufreq/cpufreq_userspace.c
@@ -131,19 +131,26 @@ static int cpufreq_governor_userspace(struct cpufreq_policy *policy,
                                   unsigned int event)
 {
        unsigned int cpu = policy->cpu;
+       int rc = 0;
+
        switch (event) {
        case CPUFREQ_GOV_START:
                if (!cpu_online(cpu))
                        return -EINVAL;
                BUG_ON(!policy->cur);
                mutex_lock(&userspace_mutex);
+               rc = sysfs_create_file (&policy->kobj,
+                                       &freq_attr_scaling_setspeed.attr);
+               if (rc)
+                       goto start_out;
+
                cpu_is_managed[cpu] = 1;
                cpu_min_freq[cpu] = policy->min;
                cpu_max_freq[cpu] = policy->max;
                cpu_cur_freq[cpu] = policy->cur;
                cpu_set_freq[cpu] = policy->cur;
-               sysfs_create_file (&policy->kobj, &freq_attr_scaling_setspeed.attr);
                dprintk("managing cpu %u started (%u - %u kHz, currently %u kHz)\n", cpu, cpu_min_freq[cpu], cpu_max_freq[cpu], cpu_cur_freq[cpu]);
+start_out:
                mutex_unlock(&userspace_mutex);
                break;
        case CPUFREQ_GOV_STOP:
@@ -180,7 +187,7 @@ static int cpufreq_governor_userspace(struct cpufreq_policy *policy,
                mutex_unlock(&userspace_mutex);
                break;
        }
-       return 0;
+       return rc;
 }