usb: core: endpoint: Fix error path

In function usb_create_ep_devs()
call put_device() when device_register() fails.
Signed-off-by: Rahul Ruikar <rahul.ruikar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/core/endpoint.c

@@ -202,7 +202,7 @@ int usb_create_ep_devs(struct device *parent,
 	return retval;
 
 error_register:
-	kfree(ep_dev);
+	put_device(&ep_dev->dev);
 exit:
 	return retval;
 }