[dak/master] daklib/checks.py: only use source.filename if source is not None

[Ansgar Burchardt <ansgar@debian.org>]

---
 daklib/checks.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/daklib/checks.py b/daklib/checks.py
index f073d52..63ea10f 100644
--- a/daklib/checks.py
+++ b/daklib/checks.py
@@ -174,8 +174,8 @@ class HashesCheck(Check):
             for f in changes.files.itervalues():
                 f.check(upload.directory)
             source = changes.source
-            what = source.filename
             if source is not None:
+                what = source.filename
                 for f in source.files.itervalues():
                     f.check(upload.directory)
         except IOError as e:
-- 
1.7.2.5