diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index 3214ca375d640536ab871b05a76b3e9b8924ad62..61ff927928ab9620231eddce21056a4160488e5f 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -892,10 +892,11 @@ static int dummy_udc_probe (struct platform_device *pdev)
 		return rc;
 	}
 
-	platform_set_drvdata (pdev, dum);
 	rc = device_create_file (&dum->gadget.dev, &dev_attr_function);
 	if (rc < 0)
 		device_unregister (&dum->gadget.dev);
+	else
+		platform_set_drvdata(pdev, dum);
 	return rc;
 }
 
@@ -1995,11 +1996,29 @@ static int __init init (void)
 	retval = platform_device_add(the_hcd_pdev);
 	if (retval < 0)
 		goto err_add_hcd;
+	if (!the_controller) {
+		/*
+		 * The hcd was added successfully but its probe function failed
+		 * for some reason.
+		 */
+		retval = -EINVAL;
+		goto err_add_udc;
+	}
 	retval = platform_device_add(the_udc_pdev);
 	if (retval < 0)
 		goto err_add_udc;
+	if (!platform_get_drvdata(the_udc_pdev)) {
+		/*
+		 * The udc was added successfully but its probe function failed
+		 * for some reason.
+		 */
+		retval = -EINVAL;
+		goto err_probe_udc;
+	}
 	return retval;
 
+err_probe_udc:
+	platform_device_del(the_udc_pdev);
 err_add_udc:
 	platform_device_del(the_hcd_pdev);
 err_add_hcd: