Fix handling of failed-start

VMInstance.py

@@ -82,17 +82,17 @@ class VMInstance:
     
         try:
             dom = conn.createXML(xmlconfig, 0)
-        except libvirt.libvirtError as e:
-            ansiiprint.echo('Failed to create VM', '{}:'.format(self.domuuid), 'e')
-            self.zk.set('/domains/{}/state'.format(self.domuuid), 'stop'.encode('ascii'))
-            return
-
             if not self.domuuid in self.thishypervisor.domain_list:
                 self.thishypervisor.domain_list.append(self.domuuid)
 
-        conn.close()
             ansiiprint.echo('Successfully started VM', '{}:'.format(self.domuuid), 'o')
             self.dom = dom
+        except libvirt.libvirtError as e:
+            ansiiprint.echo('Failed to create VM', '{}:'.format(self.domuuid), 'e')
+            self.zk.set('/domains/{}/state'.format(self.domuuid), 'stop'.encode('ascii'))
+            self.dom = None
+
+        conn.close()
         self.instart = False
    
     # Stop the VM forcibly without updating state