From cf298a1e9e512d91057916384e70e12a09d43f77 Mon Sep 17 00:00:00 2001
From: David Shea <dshea@redhat.com>
Date: Fri, 13 Mar 2015 10:36:16 -0400
Subject: [PATCH] Do not attempt to set None as a warning

---
 pyanaconda/ui/gui/hubs/__init__.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pyanaconda/ui/gui/hubs/__init__.py b/pyanaconda/ui/gui/hubs/__init__.py
index 8d388aa6466..a139bb25a4e 100644
--- a/pyanaconda/ui/gui/hubs/__init__.py
+++ b/pyanaconda/ui/gui/hubs/__init__.py
@@ -88,6 +88,8 @@ def __init__(self, data, storage, payload, instclass):
         self._inSpoke = False
         self._notReadySpokes = []
         self._spokes = {}
+
+        # Used to store the last result of _updateContinue
         self._warningMsg = None
 
         self._checker = None
@@ -228,9 +230,11 @@ def _updateContinue(self):
         # info bar with incomplete spoke messages when the hub starts
         if warning != self._warningMsg:
             self.clear_info()
-            self.set_warning(warning)
             self._warningMsg = warning
 
+            if warning:
+                self.set_warning(warning)
+
         self._updateContinueButton()
 
     @property