USB/gadget/net2280: handle sysfs errors

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c
index d954daa..7cfe0e5 100644 (file)
--- a/drivers/usb/gadget/net2280.c
+++ b/drivers/usb/gadget/net2280.c
@@ -2044,8 +2044,10 @@ int usb_gadget_register_driver (struct usb_gadget_driver *driver)
                return retval;
        }
 
-       device_create_file (&dev->pdev->dev, &dev_attr_function);
-       device_create_file (&dev->pdev->dev, &dev_attr_queues);
+       retval = device_create_file (&dev->pdev->dev, &dev_attr_function);
+       if (retval) goto err_unbind;
+       retval = device_create_file (&dev->pdev->dev, &dev_attr_queues);
+       if (retval) goto err_func;
 
        /* ... then enable host detection and ep0; and we're ready
         * for set_configuration as well as eventual disconnect.
@@ -2060,6 +2062,14 @@ int usb_gadget_register_driver (struct usb_gadget_driver *driver)
 
        /* pci writes may still be posted */
        return 0;
+
+err_func:
+       device_remove_file (&dev->pdev->dev, &dev_attr_function);
+err_unbind:
+       driver->unbind (&dev->gadget);
+       dev->gadget.dev.driver = NULL;
+       dev->driver = NULL;
+       return retval;
 }
 EXPORT_SYMBOL (usb_gadget_register_driver);
 
@@ -2974,8 +2984,10 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
                                : "disabled");
        the_controller = dev;
 
-       device_register (&dev->gadget.dev);
-       device_create_file (&pdev->dev, &dev_attr_registers);
+       retval = device_register (&dev->gadget.dev);
+       if (retval) goto done;
+       retval = device_create_file (&pdev->dev, &dev_attr_registers);
+       if (retval) goto done;
 
        return 0;