diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c
index c892cf1348af..f0c071da68d1 100644
--- a/drivers/usb/misc/adutux.c
+++ b/drivers/usb/misc/adutux.c
@@ -152,6 +152,7 @@ static void adu_delete(struct adu_device *dev)
 	kfree(dev->read_buffer_secondary);
 	kfree(dev->interrupt_in_buffer);
 	kfree(dev->interrupt_out_buffer);
+	usb_put_dev(dev->udev);
 	kfree(dev);
 }
 
@@ -680,7 +681,7 @@ static int adu_probe(struct usb_interface *interface,
 
 	mutex_init(&dev->mtx);
 	spin_lock_init(&dev->buflock);
-	dev->udev = udev;
+	dev->udev = usb_get_dev(udev);
 	init_waitqueue_head(&dev->read_wait);
 	init_waitqueue_head(&dev->write_wait);