commit 221d46dde594ca9b69915ac128fc1a9a19f984a1
Author: Valentina Mukhamedzhanova <vmukhame@redhat.com>
Date:   Mon Feb 17 12:31:59 2014 +0100

    Fix debuginfo-install doLock() traceback. BZ 1062479

diff --git a/yum/__init__.py b/yum/__init__.py
index 3b6ed82..37ab468 100644
--- a/yum/__init__.py
+++ b/yum/__init__.py
@@ -2165,6 +2165,7 @@ much more problems).
                 self._unlock(lockfile)
                 continue
             if oldpid == os.getpid(): # if we own the lock, we're fine
+                ret = 1
                 break
             # Another copy seems to be running.
             msg = _('Existing lock %s: another copy is running as pid %s.') % (lockfile, oldpid)