commit b9863f4b9c181184ed93bb9ba1877b5b1b930c4e
author June Tate-Gans <jtgans@google.com> Fri Feb 15 15:39:23 2019 -0800
committer June Tate-Gans <jtgans@google.com> Fri Feb 15 15:39:23 2019 -0800
tree fa0127d9efbdfd64eb2fedf1e88eab16d43cd4c3
parent ffc883bea089cf42cf726da4062120f630c39003

discoverer: Fix a bug in multiple removals

If we get notifications that a host has been lost twice, we can crash out.

Change-Id: Ifeef72d3c41707187d8f9f95674bbd0997b1e7fe

mdt/discoverer.py

diff --git a/mdt/discoverer.py b/mdt/discoverer.py
index 715f336..bd080a6 100644
--- a/mdt/discoverer.py
+++ b/mdt/discoverer.py
@@ -42,7 +42,8 @@
         if self.listener and hasattr(self.listener, "remove_device"):
             self.listener.remove_device(info.server,
                                         self.discoveries[info.server])
-        del(self.discoveries[info.server])
+        if info.server in self.discoveries:
+            del(self.discoveries[info.server])
 
     def stop(self):
         self.browser.cancel()