static int usb_hub_configure(struct usb_device *dev)
{
- int i;
+ int i, length;
ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buffer, USB_BUFSIZ);
unsigned char *bitmap;
short hubCharacteristics;
}
descriptor = (struct usb_hub_descriptor *)buffer;
- /* silence compiler warning if USB_BUFSIZ is > 256 [= sizeof(char)] */
- i = descriptor->bLength;
- if (i > USB_BUFSIZ) {
- debug("usb_hub_configure: failed to get hub " \
- "descriptor - too long: %d\n", descriptor->bLength);
- return -1;
- }
+ length = min(descriptor->bLength, sizeof(struct usb_hub_descriptor));
- if (usb_get_hub_descriptor(dev, buffer, descriptor->bLength) < 0) {
+ if (usb_get_hub_descriptor(dev, buffer, length) < 0) {
debug("usb_hub_configure: failed to get hub " \
"descriptor 2nd giving up %lX\n", dev->status);
return -1;
}
- memcpy((unsigned char *)&hub->desc, buffer, descriptor->bLength);
+ memcpy((unsigned char *)&hub->desc, buffer, length);
/* adjust 16bit values */
put_unaligned(le16_to_cpu(get_unaligned(
&descriptor->wHubCharacteristics)),