linux-toradex.git/sound/core/oss, branch v3.0.65

ALSA: Fix card refcount unbalance

2012-11-17T21:14:26+00:00

commit 8bb4d9ce08b0a92ca174e41d92c180328f86173f upstream.

There are uncovered cases whether the card refcount introduced by the
commit a0830dbd isn't properly increased or decreased:
- OSS PCM and mixer success paths
- When lookup function gets NULL

This patch fixes these places.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=50251

Signed-off-by: Takashi Iwai 
Signed-off-by: Greg Kroah-Hartman

ALSA: Avoid endless sleep after disconnect

2012-11-17T21:14:22+00:00

commit 0914f7961babbf28aaa2f19b453951fb4841c03f upstream.

When disconnect callback is called, each component should wake up
sleepers and check card->shutdown flag for avoiding the endless sleep
blocking the proper resource release.

Signed-off-by: Takashi Iwai 
Signed-off-by: Greg Kroah-Hartman

ALSA: Add a reference counter to card instance

2012-11-17T21:14:22+00:00

commit a0830dbd4e42b38aefdf3fb61ba5019a1a99ea85 upstream.

For more strict protection for wild disconnections, a refcount is
introduced to the card instance, and let it up/down when an object is
referred via snd_lookup_*() in the open ops.

The free-after-last-close check is also changed to check this refcount
instead of the empty list, too.

Reported-by: Matthieu CASTET 
Signed-off-by: Takashi Iwai 
Signed-off-by: Greg Kroah-Hartman

ALSA: core: remove unused variables.

2011-05-26T06:19:04+00:00

Drop a few variables that are never read.

Signed-off-by: Luca Tettamanti 
Signed-off-by: Takashi Iwai

ALSA: core: sparse cleanups

2011-02-14T16:10:11+00:00

Change the core code where sparse complains.  In most cases, this means
just adding annotations to confirm that we indeed want to do the dirty
things we're doing.

Signed-off-by: Clemens Ladisch 
Signed-off-by: Takashi Iwai

ALSA: Don't leak in sound/core/oss/pcm_oss.c::snd_pcm_hw_param_near()

2011-01-10T10:13:42+00:00

snd_pcm_hw_param_near() will leak the memory allocated to 'save' if the
call to snd_pcm_hw_param_max() returns less than zero.
This patch makes sure we never leak.

Signed-off-by: Jesper Juhl 
Signed-off-by: Takashi Iwai

ALSA: Fix SNDCTL_DSP_RESET ioctl for OSS emulation

2010-11-30T07:18:58+00:00

In OSS emulation, SNDCTL_DSP_RESET ioctl needs the reset of the internal
buffer state in addition to drop of the running streams.  Otherwise the
succeeding access becomes inconsistent.

Tested-by: Amit Nagal 
Cc: 
Signed-off-by: Takashi Iwai

Merge remote branch 'alsa/devel' into topic/misc

2010-10-11T11:56:12+00:00

ALSA: OSS mixer emulation - fix locking

2010-10-11T09:14:23+00:00

Fix mutex release and cleanup some locking code.

Cc: 
Signed-off-by: Jaroslav Kysela

sound: Remove unnecessary casts of private_data

2010-09-07T06:05:59+00:00

Signed-off-by: Joe Perches 
Signed-off-by: Takashi Iwai