PERFORCE change 101783 for review

[Hans Petter Selasky]

http://perforce.freebsd.org/chv.cgi?CH=101783

Change 101783 by hselasky at hselasky_mini_itx on 2006/07/17 18:39:53

	Make the USB_DEVICEINFO IOCTL backwards compatible.

Affected files ...

.. //depot/projects/usb/src/sys/dev/usb/usb.c#6 edit

Differences ...

==== //depot/projects/usb/src/sys/dev/usb/usb.c#6 (text+ko) ====

@@ -857,13 +857,18 @@
 			int addr = di->udi_addr;
 
 			if((addr < 1) ||
-			   (addr >= USB_MAX_DEVICES) ||
-			   (bus->devices[addr] == 0))
+			   (addr >= USB_MAX_DEVICES))
 			{
 				error = EINVAL;
 				goto done;
 			}
 
+			if (bus->devices[addr] == 0)
+			{
+				error = ENXIO;
+				goto done;
+			}
+
 			error = usbd_fill_deviceinfo(bus->devices[addr], di, 1);
 			goto done;
 		}