From 8611d9c3d8c76df2c4631c262734fb87bf341dc6 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <michael@ellerman.id.au>
Date: Fri, 13 Jan 2012 14:39:23 +1100
Subject: [PATCH] Make drive unit attribute optional in the XML schema

The "unit" attribute of a drive address is optional in the code, so should
also be in the XML schema.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
---
 docs/schemas/domaincommon.rng | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index db02603cd2..6d265f3c2c 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -2320,9 +2320,11 @@
         <ref name="driveBus"/>
       </attribute>
     </optional>
-    <attribute name="unit">
-      <ref name="driveUnit"/>
-    </attribute>
+    <optional>
+      <attribute name="unit">
+        <ref name="driveUnit"/>
+      </attribute>
+    </optional>
   </define>
   <define name="virtioserialaddress">
     <attribute name="controller">