John Baldwin 369934d602 Cleanups to pst(4):
- Use callout(9) instead of timeout(9).
- Don't bother zero'ing the softc.
- Destroy mutex on detach.

Tested by:	no one
2014-11-18 21:58:57 +00:00
..
2014-11-18 21:58:57 +00:00
2014-11-18 21:58:57 +00:00