6546454 missing check for null pointer in fix for 6540208

[joe.bonas...@sun.com]

Author: josephb
Repository: /hg/onnv/onnv-gate
Latest revision: da968d040d72c3139b24529bbce194fa4f78ca45
Total changesets: 1
Log message:
6546454 missing check for null pointer in fix for 6540208

Files:
        update: usr/src/uts/i86pc/vm/hment.c