From: Andreas Mohr <andi@lisas.de>
Date: Tue, 28 Mar 2006 10:56:14 +0000 (+0200)
Subject: [ALSA] maestro3.c: fix BUG, optimization
X-Git-Tag: v2.6.17-rc1~6^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0b2dcd5d6a9a3e27fdd67053e526388f9f2ea33b;p=pandora-kernel.git

[ALSA] maestro3.c: fix BUG, optimization

- fix brown-paper-bag locking bug (lock() / return / unlock())
- improve central function snd_m3_update_ptr()
  (avoid expensive integer divisions)
- add cpu_relax() to busy-wait I/O loop as recommended
  (does this require special macro support in ALSA for older kernels??)
- constify several structs
- spelling updates

Signed-off-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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