K 10
svn:author
V 4
jkim
K 8
svn:date
V 27
2010-03-22T19:59:00.696642Z
K 7
svn:log
V 330
MFC:	r205092

Tidy up callout for select(2) and read timeout.

- Add a missing callout_drain(9) before the descriptor deallocation.[1]
- Prefer callout_init_mtx(9) over callout_init(9) and let the callout
subsystem handle the mutex for callout function.

PR:		kern/144453
Submitted by:	Alexander Sack (asack at niksun dot com)[1]

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