-#ifdef CONFIG_HOTPLUG_CPU
-static int cpuid_class_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
+static int __devinit cpuid_class_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
class_device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, cpu));
class_destroy(cpuid_class);
unregister_chrdev(CPUID_MAJOR, "cpu/cpuid");
class_device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, cpu));
class_destroy(cpuid_class);
unregister_chrdev(CPUID_MAJOR, "cpu/cpuid");