6365335 mod_removefs() fails to decrement reference count - prevents unloads

[nore...@opensolaris.org]

Author: sp92102
Repository: /hg/onnv/onnv-gate
Revision: 7aec81efab0478e8e3703b55471083467cc08b0c
Log message:
6365335 mod_removefs() fails to decrement reference count - prevents unloads

Files:
        update: usr/src/uts/common/os/modconf.c