Commit Graph

18 Commits

Author SHA1 Message Date
Takashi Iwai 6708913750 ALSA: pcm: Add missing error checks in OSS emulation plugin builder
In the OSS emulation plugin builder where the frame size is parsed in
the plugin chain, some places miss the possible errors returned from
the plugin src_ or dst_frames callback.

This patch papers over such places.

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-01-04 16:39:27 +01:00
Takashi Sakamoto e76bf3c4b4 ALSA: pcm/oss: refer to parameters instead of copying to reduce usage of kernel stack
Some functions in compatibility layer for Open Sound System interface has
local variable to copy some parameters in runtime of PCM substream, while
this can be replaced with reference of pointers to parameter itself. This
brings an advantage to reduce usage of kernel stack.

This commit applies this idea.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-05-17 07:25:01 +02:00
Xi Wang 701ef3205e ALSA: core: fix NULL checking in snd_pcm_plug_slave_size()
The dereference snd_pcm_plug_stream(plug) should come after the NULL
check snd_BUG_ON(!plug).

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-11-14 08:03:31 +01:00
Xi Wang 9af4e7feda ALSA: core: fix NULL checking in snd_pcm_plug_client_size()
The dereference snd_pcm_plug_stream(plug) should come after the NULL
check snd_BUG_ON(!plug).

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-11-14 08:03:27 +01:00
Clemens Ladisch fea952e5cc ALSA: core: sparse cleanups
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 <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-02-14 17:10:11 +01:00
Takashi Iwai 7eaa943c8e ALSA: Kill snd_assert() in sound/core/*
Kill snd_assert() in sound/core/*, either removed or replaced with
if () with snd_BUG_ON().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-08-13 11:46:35 +02:00
Takashi Iwai 9004acc70e [ALSA] Remove sound/driver.h
This header file exists only for some hacks to adapt alsa-driver
tree.  It's useless for building in the kernel.  Let's move a few
lines in it to sound/core.h and remove it.
With this patch, sound/driver.h isn't removed but has just a single
compile warning to include it.  This should be really killed in
future.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:29:48 +01:00
Jaroslav Kysela c1017a4cdb [ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2007-10-16 16:51:18 +02:00
Takashi Iwai 64d27f96cb [ALSA] Support 3-bytes 24bit format in PCM OSS emulation
Add the support of 3-bytes 24bit formats in PCM OSS emulation.
Also removed snd_pcm_build_linear_format() function.  It's exported
just for OSS emulation, and now the code was changed without calling
this function.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-10-16 15:58:31 +02:00
Takashi Iwai 887f9f0253 [ALSA] Remove ifdefs from OSS PCM emulation codes
Fix Makefile to compile files conditionally to CONFIG_SND_PCM_OSS_PLUGINS,
and remove unneeded ifdefs in these files.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-10-16 15:58:30 +02:00
Takashi Iwai c82590d2b2 [ALSA] Fix mulaw -> linear conversion in OSS PCM emulation
Modules: ALSA<-OSS emulation

Fixed the missing mulaw -> linear conversion in OSS PCM emulation code.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-03-22 10:28:02 +01:00
Takashi Iwai 0534ab4279 [ALSA] Clean up pcm-oss plugins
Modules: ALSA<-OSS emulation

Clean up pcm-oss plugin codes.
Removed dead codes, and simplified route/rate plugins.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-03-22 10:23:20 +01:00
Jaroslav Kysela 21a3479a0b [ALSA] PCM midlevel & PCM OSS - make procfs & OSS plugin code optional
Modules: ALSA Core,PCM Midlevel,ALSA<-OSS emulation,USB generic driver

1) The verbose procfs code for the PCM midlevel and usb audio
   can be removed now (more patches will follow).
   CONFIG_SND_VERBOSE_PROCFS
2) The PCM OSS plugin system can be also compiled optionaly.
   CONFIG_SND_PCM_OSS_PLUGINS

Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-03-22 10:23:12 +01:00
Takashi Iwai 6ac77bc180 [ALSA] Remove xxx_t typedefs: PCM OSS-emulation
Modules: ALSA<-OSS emulation

Remove xxx_t typedefs from the core PCM OSS-emulation codes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-01-03 12:17:48 +01:00
Takashi Iwai 47eaebfd31 [ALSA] Use standard bitmap functions
Modules: ALSA<-OSS emulation

Use standard bitmap functions instead of in-house ones.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-01-03 12:16:33 +01:00
Takashi Iwai ca2c096656 [ALSA] Replace with kzalloc() - core stuff
Control Midlevel,ALSA Core,HWDEP Midlevel,PCM Midlevel,RawMidi Midlevel
Timer Midlevel,ALSA<-OSS emulation
Replace kcalloc(1,..) with kzalloc().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-09-12 10:47:59 +02:00
Adrian Bunk 94f19c9a6d [ALSA] kill dead code
ALSA<-OSS emulation
The Coverity checker found this obviously dead code.

I'm not sure which of the if (plugin == NULL) is correct - this patch
removes the one that couldn't be true.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-05-29 09:00:11 +02:00
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00