[usb] Use correct length for memcpy()

Signed-off-by: Michael Brown <mcb30@ipxe.org>

diff --git a/src/drivers/bus/usb.c b/src/drivers/bus/usb.c
index cad26c77b87acfeed11bfee7a1f3eb6f6c9acf65..bd2a446be0d205ddb8e8883a5f4b3b07d9f2828c 100644 (file)
--- a/src/drivers/bus/usb.c
+++ b/src/drivers/bus/usb.c
@@ -1005,8 +1005,8 @@ static int usb_describe ( struct usb_device *usb,
                }
 
                /* Describe function */
-               memcpy ( &desc->class, &association->class,
-                        sizeof ( desc->class ) );
+               memcpy ( &desc->class.class, &association->class,
+                        sizeof ( desc->class.class ) );
                desc->count = association->count;
                for ( i = 0 ; i < association->count ; i++ )
                        interfaces[i] = ( first + i );