PERFORCE change 143877 for review

[Weongyo Jeong]

http://perforce.freebsd.org/chv.cgi?CH=143877

Change 143877 by weongyo at weongyo_ws on 2008/06/21 13:32:41

	choice a smaller buffer to save the config descriptors that this
	provents a overwrite if the buffer to save is smaller than the 
	total size of config descriptors.

Affected files ...

.. //depot/projects/ndisusb/sys/compat/ndis/subr_usbd.c#7 edit

Differences ...

==== //depot/projects/ndisusb/sys/compat/ndis/subr_usbd.c#7 (text+ko) ====

@@ -368,7 +368,7 @@
 			ctldesc->ucd_trans_buflen = 0;
 			return usbd_usb2urb(status);
 		}
-		len = UGETW(cd.wTotalLength);
+		len = MIN(UGETW(cd.wTotalLength), ctldesc->ucd_trans_buflen);
 		/* Get the full descriptor.  Try a few times for slow devices. */
 		for (i = 0; i < 3; i++) {
 			status = usbd_get_desc(uaa->device,