6747522 cmdk: fix memory leak and some code cleanup

[mark.lo...@sun.com]

Author: Mark Logan <Mark.Logan at Sun.COM>
Repository: /hg/onnv/onnv-gate
Latest revision: 271066a215a8b4c785ed9c35ee4026fb493757eb
Total changesets: 1
Log message:
6747522 cmdk: fix memory leak and some code cleanup

Files:
        update: usr/src/uts/intel/io/dktp/disk/cmdk.c