linux/sound
Sergei Shtylylov 7b6666530e [PATCH] Au1550 AC'97 OSS driver spinlock fixes
We have found some issues with Au1550 AC'97 OSS driver in 2.6
(sound/oss/au1550_ac97.c), though it also should concern 2.4 driver
(drivers/sound/au1550_psc.c).

start_dac() grabs a spinlock already held by its caller, au1550_write().
This doesn't show up with the standard UP spinlock impelmentation but when
the different one (mutex based) is in use, a lockup happens.

And the interrupt handlers also didn't grab the spinlock -- that's OK in
the usual kernel but not when the IRQ handlers are threaded.  So, they're
grabbing the spinlock now (as every correct interrupt handler should do).

Signed-off-by: Konstantin Baidarov <kbaidarov@ru.mvista.com>
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-15 14:22:45 -08:00
..
arm [DRIVER MODEL] Convert platform drivers to use struct platform_driver 2005-11-09 22:32:44 +00:00
core [PATCH] unpaged: fix sound Bad page states 2005-11-22 09:13:43 -08:00
drivers [PATCH] vx_hwdep.c needs vmalloc.h 2005-11-09 07:55:50 -08:00
i2c [ALSA] Fix schedule_timeout usage 2005-11-04 13:19:49 +01:00
isa [ALSA] Fix schedule_timeout usage 2005-11-04 13:19:49 +01:00
mips [ALSA] AMD Au1x00 driver: buggy spinlocks 2005-11-04 13:20:26 +01:00
oss [PATCH] Au1550 AC'97 OSS driver spinlock fixes 2005-12-15 14:22:45 -08:00
parisc [PARISC] Update harmony from parisc tree 2005-10-21 22:42:38 -04:00
pci [PATCH] pci_ids cleanup: fix two additional IDs in bt87x 2005-11-10 16:09:17 -08:00
pcmcia [ALSA] Remove vmalloc wrapper, kfree_nocheck() 2005-11-04 13:18:00 +01:00
ppc [PATCH] PowerBook 6,1: headphone not detected after suspend 2005-11-16 13:51:50 +11:00
sparc [SPARC]: More abstractions and cleanups of dma handling in cs4231. 2005-11-07 14:09:19 -08:00
synth [ALSA] Fix emu10k1 synth problems. 2005-11-04 13:20:13 +01:00
usb [PATCH] unpaged: sound nopage get_page 2005-11-22 09:13:42 -08:00
Kconfig [ALSA] sound: align device drivers menus 2005-11-04 13:17:08 +01:00
last.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sound_core.c [PATCH] Driver Core: fix up all callers of class_device_create() 2005-10-28 09:52:52 -07:00
sound_firmware.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00