Subject: devicepanic: Don't return empty model list (bz #1505532)
From: Cole Robinson crobinso@redhat.com Fri Oct 27 09:42:54 2017 +0200
Date: Fri Oct 27 09:42:54 2017 +0200:
Git: f7c8cf9f667f2b0122f5689009d74c94c38c7316

Callers don't expect it, and it breaks opening the addhardware dialog
for aarch64 VMs

https://bugzilla.redhat.com/show_bug.cgi?id=1505532

diff --git a/virtinst/devicepanic.py b/virtinst/devicepanic.py
index 63a88f71..9f44e93e 100644
--- a/virtinst/devicepanic.py
+++ b/virtinst/devicepanic.py
@@ -49,12 +49,13 @@ class VirtualPanicDevice(VirtualDevice):
     @staticmethod
     def get_models(os):
         if os.is_x86():
-            return [VirtualPanicDevice.MODEL_ISA, VirtualPanicDevice.MODEL_HYPERV]
+            return [VirtualPanicDevice.MODEL_ISA,
+                    VirtualPanicDevice.MODEL_HYPERV]
         elif os.is_pseries():
             return [VirtualPanicDevice.MODEL_PSERIES]
         elif os.is_s390x():
             return [VirtualPanicDevice.MODEL_S390]
-        return None
+        return []
 
     @staticmethod
     def get_default_model(os):