Patch: fix ath_mutex_destroy

[Marcus Brinkmann]

At Mon, 10 Jul 2006 10:16:55 +0200 (CEST),
haypo at inl.fr wrote:
> 
> As Marcus Brinkmann asked, here is the patch against ath_mutex_destroy().

I put in a slightly different change.  Here are a couple of
suggestions: Keep the coding style according to the surrounding code
(or use the GNU coding standard, which is the same in this case).  Do
not make gratuitous style changes.  In this case, the admittedly
awkward layout of the user-specific path vs the generic path is
consistent across the file.  It is helpful if you submit a changelog
entry as well.

Thanks,
Marcus

2006-07-12  Marcus Brinkmann  <marcus at g10code.de>

	* ath.c (ath_mutex_destroy): Microoptimize destruction of unused
	statitically initialized mutexes.  Suggested by Victor Stinner
	<haypo at inl.fr>.