Please review: [Bug 623507] fix coverity Defect Type: Incorrect expression issues

[Noriko Hosoi]

https://bugzilla.redhat.com/show_bug.cgi?id=623507

https://bugzilla.redhat.com/attachment.cgi?id=438320&action=diff
https://bugzilla.redhat.com/attachment.cgi?id=438320&action=edit

https://bugzilla.redhat.com/attachment.cgi?id=438321&action=diff
https://bugzilla.redhat.com/attachment.cgi?id=438321&action=edit

Thanks,
--noriko