AcoSail/kernel_optimize_test
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399ccdc1cd
kernel_optimize_test/sound/core
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Takashi Iwai 399ccdc1cd ALSA: fix locking in snd_pcm_open*() and snd_rawmidi_open*() 
The PCM and rawmidi open callbacks have a lock against card->controls_list
but it takes a wrong one, card->controls_rwsem, instead of a right one
card->ctl_files_rwlock.  This patch fixes them.

This change also fixes automatically the potential deadlocks due to
mm->mmap_sem in munmap and copy_from/to_user, reported by Sitsofe
Wheeler:

  A: snd_ctl_elem_user_tlv(): card->controls_rwsem => mm->mmap_sem
  B: snd_pcm_open(): card->open_mutex => card->controls_rwsem
  C: munmap: mm->mmap_sem => snd_pcm_release(): card->open_mutex

The patch breaks the chain.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-09-25 14:51:03 +02:00
..
oss [ALSA] Add more fallbacks to OSS PHONEOUT mixer map 2008-04-24 12:00:07 +02:00
seq sound: ensure device number is valid in snd_seq_oss_synth_make_info 2008-08-04 17:03:26 -07:00
control_compat.c [ALSA] copy_ctl_value_from_user() warning fix 2008-01-31 17:29:34 +01:00
control.c ALSA: make snd_ctl_elem_read() and snd_ctl_elem_write() static 2008-06-13 16:48:49 +02:00
device.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
hwdep_compat.c [PATCH] hwdep_compat missed __user annotations 2006-10-10 15:37:21 -07:00
hwdep.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
info_oss.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
info.c PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
init.c device create: sound: convert device_create to device_create_drvdata 2008-07-21 21:54:44 -07:00
isadma.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
Kconfig [ALSA] Replace CONFIG_SND_DEBUG_DETECT with CONFIG_SND_DEBUG_VERBOSE 2008-05-27 15:56:21 +02:00
Makefile [ALSA] Move vmaster code to sound core 2008-04-24 12:00:12 +02:00
memalloc.c [ALSA] Remove unneeded ugly hack for i386 in memalloc.c 2008-05-19 13:19:15 +02:00
memory.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
misc.c [ALSA] sound: this amplifier only goes up to 7 2008-04-24 12:00:35 +02:00
pcm_compat.c [ALSA] Add SNDRV_PCM_IOCTL_TSTAMP back to compat ioctl 2008-01-31 17:29:36 +01:00
pcm_lib.c [ALSA] PCM interface - rename SNDRV_PCM_TSTAMP_MMAP to SNDRV_PCM_TSTAMP_ENABLE 2008-01-31 17:29:54 +01:00
pcm_memory.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
pcm_misc.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
pcm_native.c Revert "pcm_native.c: remove unused label" 2008-08-06 19:26:20 -07:00
pcm_timer.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
pcm.c ALSA: fix locking in snd_pcm_open*() and snd_rawmidi_open*() 2008-09-25 14:51:03 +02:00
rawmidi_compat.c
rawmidi.c ALSA: fix locking in snd_pcm_open*() and snd_rawmidi_open*() 2008-09-25 14:51:03 +02:00
rtctimer.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
sgbuf.c [ALSA] use the ALIGN macro 2006-12-20 08:55:36 +01:00
sound_oss.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
sound.c Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6 2008-07-14 14:48:31 -07:00
timer_compat.c
timer.c ALSA: remove CONFIG_KMOD from sound 2008-07-10 09:32:58 +02:00
vmaster.c [ALSA] Keep private TLV entry in vmaster itself 2008-04-24 12:00:12 +02:00