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Date: Tue, 09 Jun 2009 17:48:20 -0600
From: Peter Grehan <grehan@freebsd.org>
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To: "M. Warner Losh" <imp@bsdimp.com>
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Cc: arch@freebsd.org
Subject: Re: devclass_find_free_unit
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Hi Warner,

> What purpose does devclass_find_free_unit serve?  I think it can safely be
> eliminated from the tree.  The current design is racy.
  ...
> ./powerpc/psim/.svn/text-base/ata_iobus.c

  That would be a cut'n'paste relic from the ATA code that it originated 
from. Going to -1 is fine.

later,

Peter.