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

[ALSA] Remove xxx_t typedefs: Raw MIDI

2006-01-03 12:17:35 +01:00

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

[ALSA] Remove xxx_t typedefs: Timer

2006-01-03 12:17:34 +01:00

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