Description of problem:
When I first connect to RedHat Network, I try to patch all the fixes that I have been missed into my system RedHat 5:
[root@flee-sc440 ~]# uname -a
Linux flee-sc440.homelinux.net 2.6.18-53.el5 #1 SMP Wed Oct 10 16:34:02 EDT 2007 i686 i686 i386 GNU/Linux


Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.Connect to RedHat system
2.I saw there are over 200 fixes that I need to install, so I select "install"
3.the Software updater can not finish it's installation and give me a error log, which I attached at the end of Additional Info field. 
  
Actual results:
failed in installation

Expected results:
Install seamlessly

Additional info:
Here is the log file when error occurred:
Component: Software Updater
Summary: TBd05087db rhnplugin.py:298:_noExceptionWrappingGet:UnboundLocalError: local variable 'result' referenced before assignment

Traceback (most recent call last):
  File "/usr/sbin/pup", line 438, in _apply
    self.applyChanges(self.mainwin)
  File "/usr/lib/python2.4/site-packages/pirut/__init__.py", line 561, in applyChanges
    dlpkgs = self.downloadPackages(mainwin)
  File "/usr/lib/python2.4/site-packages/pirut/__init__.py", line 273, in downloadPackages
    probs = self.downloadPkgs(dlpkgs)
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 690, in downloadPkgs
    cache=po.repo.http_caching != 'none',
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 447, in getPackage
    cache=cache
  File "/usr/lib/yum-plugins/rhnplugin.py", line 209, in _getFile
    start, end, copy_local, checkfunc, text, reget, cache)
  File "/usr/lib/yum-plugins/rhnplugin.py", line 298, in _noExceptionWrappingGet
    return result
UnboundLocalError: local variable 'result' referenced before assignment

Local variables in innermost frame:
remote: https://xmlrpc.rhn.redhat.com/XMLRPC/GET-REQ/rhel-i386-server-5/getPackage/xmlsec1-1.2.9-8.1.1.i386.rpm
start: None
url: None
text: (230/549): xmlsec1-1.2.9-8.1.1.i386.rpm
self: rhel-i386-server-5
cache: True
reget: simple
server: https://xmlrpc.rhn.redhat.com/XMLRPC/GET-REQ/rhel-i386-server-5
relative: getPackage/xmlsec1-1.2.9-8.1.1.i386.rpm
headers: (('X-RHN-Auth-Expire-Offset', '3600.0'), ('X-RHN-Auth-User-Id', ''), ('X-RHN-Auth', 'MXiHIyCb9mXEryPTTlyobQ=='), ('X-RHN-Auth-Server-Time', '1271253737.0'), ('X-RHN-Server-Id', 1017389075))
checkfunc: (<bound method PackageUpdater.verifyPkg of <__main__.PackageUpdater object at 0x9cddb8c>>, (<yum.sqlitesack.YumAvailablePackageSqlite instance at 0xb5f4a6c>, 1), {})
copy_local: 0
end: None
local: //var/cache/yum/rhel-i386-server-5/packages/xmlsec1-1.2.9-8.1.1.i386.rpm