[Xen-changelog] [xen-unstable] XendAPIStore - do not remove non-existent item

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1233748637 0
# Node ID 861ebefa7f396c43c02a47f0bb9977f88dbc9f1b
# Parent  c3b5e36248c94d43a1619201de114fd84135a20c
XendAPIStore - do not remove non-existent item

If list is searched and item not found, then don't attempt to delete
the item.

Signed-off-by: Jim Fehlig <jfehlig@xxxxxxxxxx>
---
 tools/python/xen/xend/XendAPIStore.py |    3 ++-
 1 files changed, 2 insertions(+), 1 deletion(-)

diff -r c3b5e36248c9 -r 861ebefa7f39 tools/python/xen/xend/XendAPIStore.py
--- a/tools/python/xen/xend/XendAPIStore.py     Tue Feb 03 18:14:19 2009 +0000
+++ b/tools/python/xen/xend/XendAPIStore.py     Wed Feb 04 11:57:17 2009 +0000
@@ -33,7 +33,8 @@ def register(uuid, type, inst):
 
 def deregister(uuid, type):
     old = get(uuid, type)
-    del __classes[(uuid, type)]
+    if old is not None:
+        del __classes[(uuid, type)]
     return old
 
 def get(uuid, type):

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