int err = 0;
struct class_device *class_err;
- class_err = class_device_create(cpuid_class, MKDEV(CPUID_MAJOR, i), NULL, "cpu%d",i);
+ class_err = class_device_create(cpuid_class, NULL, MKDEV(CPUID_MAJOR, i), NULL, "cpu%d",i);
if (IS_ERR(class_err))
err = PTR_ERR(class_err);
return err;