From 5e90b3a42d53c55515b7e62bf8568aeb35582e90 Mon Sep 17 00:00:00 2001
From: ThomasV <thomasv@electrum.org>
Date: Mon, 29 Aug 2016 08:47:48 +0200
Subject: [PATCH] wizard: abort if device fails to create xpub

---
 lib/base_wizard.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/base_wizard.py b/lib/base_wizard.py
index 37c80031..5f138227 100644
--- a/lib/base_wizard.py
+++ b/lib/base_wizard.py
@@ -213,6 +213,9 @@ class BaseWizard(object):
         from keystore import hardware_keystore, bip44_derivation
         derivation = bip44_derivation(int(account_id))
         xpub = self.plugin.get_xpub(device_info.device.id_, derivation, self)
+        if xpub is None:
+            self.show_error('Cannot read xpub from device')
+            return
         d = {
             'type': 'hardware',
             'hw_type': name,