int class_device_add(struct class_device *class_dev)
{
- struct class * parent;
+ struct class * parent = NULL;
struct class_interface * class_intf;
int error;
class_dev = class_device_get(class_dev);
- if (!class_dev || !strlen(class_dev->class_id))
+ if (!class_dev)
return -EINVAL;
+ if (!strlen(class_dev->class_id)) {
+ error = -EINVAL;
+ goto register_done;
+ }
+
parent = class_get(class_dev->class);
pr_debug("CLASS: registering class device: ID = '%s'\n",