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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2006-10-09 18:09:33 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-10-17 14:46:32 -0700 |
| commit | 27d39e2627dc7493f554bc0549d8c63953762478 (patch) | |
| tree | 17aa7627b203a897657472abaf3559a73ed4fa9d | |
| parent | f8ac232ad7388bfff680b26e84b3ac63889d1cea (diff) | |
| download | op-kernel-dev-27d39e2627dc7493f554bc0549d8c63953762478.zip op-kernel-dev-27d39e2627dc7493f554bc0549d8c63953762478.tar.gz | |
usb devio: handle class_device_create() error
This patch adds missing class_device_create() error check,
and makes notifier return NOTIFY_BAD.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -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 724822c..fed92be 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 = { .release = usbdev_release, }; -static void usbdev_add(struct usb_device *dev) +static int usbdev_add(struct usb_device *dev) { int minor = ((dev->bus->busnum-1) * 128) + (dev->devnum-1); dev->class_dev = class_device_create(usb_device_class, NULL, MKDEV(USB_DEVICE_MAJOR, minor), &dev->dev, "usbdev%d.%d", dev->bus->busnum, dev->devnum); + if (IS_ERR(dev->class_dev)) + return PTR_ERR(dev->class_dev); dev->class_dev->class_data = dev; + return 0; } static void usbdev_remove(struct usb_device *dev) @@ -1609,7 +1612,8 @@ static int usbdev_notify(struct notifier_block *self, unsigned long action, { switch (action) { case USB_DEVICE_ADD: - usbdev_add(dev); + if (usbdev_add(dev)) + return NOTIFY_BAD; break; case USB_DEVICE_REMOVE: usbdev_remove(dev); |
