xm: Fix xm start -c / --vncviewer

In xm start the --vncviewer option has no effect, instead -c tries to
both connect to the console and start vncviewer. Additionally, to
start vncviewer it uses the domid variable which is only defined a few
lines later. Thus xm start -c doesn't work at all.

This patch fixes both problems.

Signed-off-by: Kevin Wolf <kwolf@suse.de>

tools/python/xen/xm/main.py

@@ -1224,9 +1224,6 @@ def xm_start(args):
     if console_autoconnect:
         start_do_console(dom)
 
-    if console_autoconnect:
-        console.runVncViewer(domid, vncviewer_autopass, True)
-
     try:
         if serverType == SERVER_XEN_API:
             server.xenapi.VM.start(get_single_vm(dom), paused)
@@ -1241,6 +1238,10 @@ def xm_start(args):
     if domid == -1:
         raise xmlrpclib.Fault(0, "Domain '%s' is not started" % dom)
 
+    if vncviewer:
+        console.runVncViewer(domid, vncviewer_autopass, True)
+
+
 def xm_delete(args):
     arg_check(args, "delete", 1)
     dom = args[0]