ovs-xapi-sync: Crashes if root-prefix is unspecified.

diff --git a/xenserver/usr_share_openvswitch_scripts_ovs-xapi-sync b/xenserver/usr_share_openvswitch_scripts_ovs-xapi-sync
index 2f29089..85795e0 100755 (executable)
--- a/xenserver/usr_share_openvswitch_scripts_ovs-xapi-sync
+++ b/xenserver/usr_share_openvswitch_scripts_ovs-xapi-sync
@@ -236,7 +236,8 @@ def main():
     ovs.daemon.handle_args(args)
 
     global root_prefix
-    root_prefix = args.root_prefix
+    if args.root_prefix:
+        root_prefix = args.root_prefix
 
     remote = args.database
     schema_file = "%s/vswitch.ovsschema" % ovs.dirs.PKGDATADIR