FIX: Coverity defects

git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4883 42a5c34f-2066-0410-bec5-ba365beb4995
FIX: Coverity defects

git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4884 42a5c34f-2066-0410-bec5-ba365beb4995
FIX: Coverity defects

git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4885 42a5c34f-2066-0410-bec5-ba365beb4995
FIX: Coverity defects

git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4886 42a5c34f-2066-0410-bec5-ba365beb4995
FIX: Coverity defects

git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4887 42a5c34f-2066-0410-bec5-ba365beb4995