From: Cole Robinson <crobinso@redhat.com>
Date: Wed, 30 Apr 2014 16:00:34 -0400
Subject: [PATCH virt-manager] connection: Call path_exists before getting
 storage volume (bz 1092739)

path_exists will check to ensure the volume actually survives a pool
refresh, incase it was deleted behind libvirt's back. This makes the
delete dialog happier at least.

(cherry picked from commit 5c28a00d3e28ba7446f323a31ac47a194eb200b1)
---
 virtManager/connection.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/virtManager/connection.py b/virtManager/connection.py
index 1d067fd..1d755c3 100644
--- a/virtManager/connection.py
+++ b/virtManager/connection.py
@@ -752,6 +752,10 @@ class vmmConnection(vmmGObject):
         return self.get_pool_by_name("default")
 
     def get_vol_by_path(self, path):
+        # path_exists will handle stuff like refreshing a busted pool
+        if not virtinst.VirtualDisk.path_exists(self.get_backend(), path):
+            return None
+
         for pool in self.pools.values():
             for vol in pool.get_volumes().values():
                 if vol.get_target_path() == path: