Bug 602530  - coverity: op_shared_modify: compare pre, post and original entries before freeing them
    
    https://bugzilla.redhat.com/show_bug.cgi?id=602530
    Resolves: bug 602530
    Bug Description: coverity: op_shared_modify: compare pre, post and original entries before freeing them
    Reviewed by: nhosoi (Thanks!)
    Branch: HEAD
    Fix Description: Get the pre entry and post entry separately, compare them to
    e and to each other before attempting to free them.
    Platforms tested: RHEL5 x86_64
    Flag Day: no
    Doc impact: no