KVM test: Repair bug of creating kvm guest machine

Signed-off-by: Jiri Zupka <jzupka@redhat.com>


git-svn-id: http://test.kernel.org/svn/autotest/trunk@5342 592f7852-d20e-0410-864c-8624ca9c26a4
diff --git a/client/virt/kvm_vm.py b/client/virt/kvm_vm.py
index 5df8719..619a5f9 100644
--- a/client/virt/kvm_vm.py
+++ b/client/virt/kvm_vm.py
@@ -405,6 +405,7 @@
                 device_id = vm.device_id[vlan]
             except IndexError:
                 netdev_id = None
+                device_id = None
             # Handle the '-net nic' part
             try:
                 mac = vm.get_mac_address(vlan)