6756798 xpvtap doesn't delete as_callback if IO not performed

[mark.john...@sun.com]

Author: Mark Johnson <Mark.Johnson at Sun.COM>
Repository: /hg/onnv/onnv-gate
Latest revision: 052836d32b270df535d7ab6484eda78233ffbcd6
Total changesets: 1
Log message:
6756798 xpvtap doesn't delete as_callback if IO not performed

Files:
        update: usr/src/uts/common/xen/io/xpvtap.c