FIX: Coverity-detected defects

git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4824 42a5c34f-2066-0410-bec5-ba365beb4995
FIX: Coverity-detected defects

git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4825 42a5c34f-2066-0410-bec5-ba365beb4995
FIX: Coverity-detected defects

git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4826 42a5c34f-2066-0410-bec5-ba365beb4995
FIX: Coverity-detected defects

git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4827 42a5c34f-2066-0410-bec5-ba365beb4995
FIX: Coverity-detected defects

git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4828 42a5c34f-2066-0410-bec5-ba365beb4995