cpufreq: move to use bus_get_dev_root()

[linux-2.6-microblaze.git] / drivers / cpufreq / intel_pstate.c

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 48a4613..102cf7f 100644 (file)
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -1473,10 +1473,13 @@ static struct kobject *intel_pstate_kobject;
 
 static void __init intel_pstate_sysfs_expose_params(void)
 {
+       struct device *dev_root = bus_get_dev_root(&cpu_subsys);
        int rc;
 
-       intel_pstate_kobject = kobject_create_and_add("intel_pstate",
-                                               &cpu_subsys.dev_root->kobj);
+       if (dev_root) {
+               intel_pstate_kobject = kobject_create_and_add("intel_pstate", &dev_root->kobj);
+               put_device(dev_root);
+       }
        if (WARN_ON(!intel_pstate_kobject))
                return;