diff options
-rw-r--r-- | drivers/usb/core/devio.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 724822cac2b1..fed92be63b5e 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c | |||
@@ -1588,15 +1588,18 @@ const struct file_operations usbfs_device_file_operations = { | |||
1588 | .release = usbdev_release, | 1588 | .release = usbdev_release, |
1589 | }; | 1589 | }; |
1590 | 1590 | ||
1591 | static void usbdev_add(struct usb_device *dev) | 1591 | static int usbdev_add(struct usb_device *dev) |
1592 | { | 1592 | { |
1593 | int minor = ((dev->bus->busnum-1) * 128) + (dev->devnum-1); | 1593 | int minor = ((dev->bus->busnum-1) * 128) + (dev->devnum-1); |
1594 | 1594 | ||
1595 | dev->class_dev = class_device_create(usb_device_class, NULL, | 1595 | dev->class_dev = class_device_create(usb_device_class, NULL, |
1596 | MKDEV(USB_DEVICE_MAJOR, minor), &dev->dev, | 1596 | MKDEV(USB_DEVICE_MAJOR, minor), &dev->dev, |
1597 | "usbdev%d.%d", dev->bus->busnum, dev->devnum); | 1597 | "usbdev%d.%d", dev->bus->busnum, dev->devnum); |
1598 | if (IS_ERR(dev->class_dev)) | ||
1599 | return PTR_ERR(dev->class_dev); | ||
1598 | 1600 | ||
1599 | dev->class_dev->class_data = dev; | 1601 | dev->class_dev->class_data = dev; |
1602 | return 0; | ||
1600 | } | 1603 | } |
1601 | 1604 | ||
1602 | static void usbdev_remove(struct usb_device *dev) | 1605 | static void usbdev_remove(struct usb_device *dev) |
@@ -1609,7 +1612,8 @@ static int usbdev_notify(struct notifier_block *self, unsigned long action, | |||
1609 | { | 1612 | { |
1610 | switch (action) { | 1613 | switch (action) { |
1611 | case USB_DEVICE_ADD: | 1614 | case USB_DEVICE_ADD: |
1612 | usbdev_add(dev); | 1615 | if (usbdev_add(dev)) |
1616 | return NOTIFY_BAD; | ||
1613 | break; | 1617 | break; |
1614 | case USB_DEVICE_REMOVE: | 1618 | case USB_DEVICE_REMOVE: |
1615 | usbdev_remove(dev); | 1619 | usbdev_remove(dev); |