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WSL2-Linux-Kernel
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WSL2-Linux-Kernel/include/sound
История
Takashi Iwai 048747b048 ALSA: pcm: Return -EBUSY for OSS ioctls changing busy streams 
commit 40cab6e88c upstream.

OSS PCM stream management isn't modal but it allows ioctls issued at
any time for changing the parameters.  In the previous hardening
patch ("ALSA: pcm: Avoid potential races between OSS ioctls and
read/write"), we covered these races and prevent the corruption by
protecting the concurrent accesses via params_lock mutex.  However,
this means that some ioctls that try to change the stream parameter
(e.g. channels or format) would be blocked until the read/write
finishes, and it may take really long.

Basically changing the parameter while reading/writing is an invalid
operation, hence it's even more user-friendly from the API POV if it
returns -EBUSY in such a situation.

This patch adds such checks in the relevant ioctls with the addition
of read/write access refcount.

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2018-04-24 09:36:34 +02:00
..
ac97_codec.h ASoC: ac97: add gpio chip 2015-11-18 18:08:54 +00:00
aci.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ad1816a.h ALSA: ad1816a: Remove always NULL parameters 2015-01-02 16:26:20 +01:00
ad1843.h
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adau1373.h ASoC: Add ADAU1373 codec support 2011-08-17 00:53:54 +09:00
aess.h ASoC: TI AESS: add autogating-enable function, callable from architecture code 2013-02-10 11:22:23 -07:00
ak4xxx-adda.h
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ak4113.h ALSA: ak411x: Use array instead of offsetof() 2017-05-17 07:13:03 +02:00
ak4114.h ALSA: ak411x: Use array instead of offsetof() 2017-05-17 07:13:03 +02:00
ak4117.h ALSA: ak411x: Use array instead of offsetof() 2017-05-17 07:13:03 +02:00
ak4531_codec.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
ak4641.h
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alc5623.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
asequencer.h UAPI: (Scripted) Disintegrate include/sound 2012-10-09 09:49:13 +01:00
asound.h UAPI: (Scripted) Disintegrate include/sound 2012-10-09 09:49:13 +01:00
asoundef.h ALSA: Add definitions for CEA-861 Audio InfoFrames 2012-04-18 08:00:36 +02:00
compress_driver.h ALSA: compress: Fix kernel-doc warnings 2016-11-15 07:28:15 +01:00
control.h ALSA: hda - Fix yet remaining issue with vmaster 0dB initialization 2017-11-30 08:40:49 +00:00
core.h ALSA: Get rid of card power_lock 2017-08-30 20:44:29 +02:00
cs35l33.h ASoC: cs35l33: Initial commit of the cs35l33 CODEC driver. 2016-06-27 17:39:06 +01:00
cs35l34.h ASoC: cs35l34: Initial commit of the cs35l34 CODEC driver. 2016-10-21 12:02:44 +01:00
cs35l35.h ASoC: cs35l35: Add Boost Inductor Calculation 2017-05-19 17:31:34 +01:00
cs42l52.h ASoC: cs42l52: Make MICA/B mixer dependent on mic config 2013-11-28 10:20:51 +00:00
cs42l56.h ASoC: Add support for CS42L56 CODEC 2014-05-05 18:20:22 -07:00
cs42l73.h ASoC: cs42l73: Add platform data support for cs42l73 codec 2013-10-18 00:37:29 +01:00
cs4231-regs.h
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cs4271.h ALSA: ASoC: cs4271: add optional soft reset workaround 2012-12-24 15:53:28 +00:00
cs8403.h
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cs8427.h ALSA: cs8427: separate HW initialization 2014-04-03 14:59:48 +02:00
da7213.h ASoC: da7213: Add support to handle mclk data provided to driver 2015-10-07 15:11:34 +01:00
da7218.h ASoC: da7218: Add da7218 codec driver 2015-11-30 12:24:12 +00:00
da7219-aad.h ASoC: codecs: Add da7219 codec driver 2015-10-02 18:11:27 +01:00
da7219.h ASoC: da7219: Disable AAD if codec is not a wake-up source 2016-09-26 09:39:50 -07:00
da9055.h ASoC: codecs: Add DA9055 codec driver 2012-09-28 14:21:54 +01:00
designware_i2s.h ASoC: dwc: Added a quirk DW_I2S_QUIRK_16BIT_IDX_OVERRIDE to dwc driver 2017-06-28 19:01:12 +01:00
dmaengine_pcm.h ASoC: Revert "Drop SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME flag" 2017-01-23 18:16:33 +00:00
emu10k1.h ALSA: emu10k1: Use workqueue instead of kthread for emu1010 fw polling 2016-11-15 08:21:19 +01:00
emu10k1_synth.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
emu8000.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
emu8000_reg.h
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emux_legacy.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
emux_synth.h ALSA: seq: Allow the tristate build of OSS emulation 2017-06-09 22:09:45 +02:00
es1688.h ALSA: es1688: Remove almost always NULL parameter 2015-01-02 16:27:03 +01:00
gus.h ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
hda_chmap.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hda_hwdep.h
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hda_i915.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hda_register.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hda_regmap.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hda_verbs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hdaudio.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hdaudio_ext.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hdmi-codec.h ASoC: hdmi-codec: add .get_dai_id support 2017-05-24 18:45:29 +01:00
hwdep.h ALSA: hwdep: Embed struct device 2015-02-02 14:42:42 +01:00
i2c.h ALSA: i2c: constify snd_i2c_ops structures 2015-11-30 11:40:08 +01:00
info.h ALSA: replace CONFIG_PROC_FS with CONFIG_SND_PROC_FS 2015-05-27 21:25:19 +02:00
initval.h ALSA: isa: Move snd_legacy_find_free_ioport to initval.h 2012-08-03 12:57:44 +02:00
jack.h ALSA: jack: Allow building the jack layer without input device 2016-02-23 09:03:07 +01:00
l3.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
max9768.h ASoC: max9768: add driver for max9768 amplifier 2012-01-30 21:50:55 +00:00
max98088.h
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max98090.h ASoC:: max98090: Remove executable bit 2013-03-20 10:54:12 +01:00
max98095.h ASoC: max98095: Single bit bitfields should be unsigned 2012-05-13 23:33:53 +01:00
memalloc.h ALSA: Remove memory reservation code from memalloc helper 2014-01-09 07:32:10 +01:00
minors.h ALSA: core: add support for compressed devices 2011-12-23 10:07:46 +01:00
mixer_oss.h ALSA: Use IS_ENABLED() in common headers 2017-05-17 07:13:04 +02:00
mpu401.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
omap-hdmi-audio.h drm: omapdrm: hdmi: Pass HDMI core version as integer to HDMI audio 2017-08-16 12:52:41 +03:00
omap-pcm.h ASoC: omap-pcm: Move omap-pcm under include/sound 2014-05-26 15:32:32 +01:00
opl3.h ALSA: seq: Allow the tristate build of OSS emulation 2017-06-09 22:09:45 +02:00
opl4.h
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pcm-indirect.h ALSA: pcm: Fix negative appl_ptr handling in pcm-indirect helpers 2017-05-25 23:34:45 +02:00
pcm.h ALSA: pcm: Add an ioctl to specify the supported protocol version 2017-06-27 13:55:46 +02:00
pcm_drm_eld.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pcm_iec958.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pcm_oss.h ALSA: pcm: Return -EBUSY for OSS ioctls changing busy streams 2018-04-24 09:36:34 +02:00
pcm_params.h ALSA: Add params_set_format helper 2015-02-24 00:43:18 +09:00
pt2258.h
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pxa2xx-lib.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rawmidi.h ALSA: Use IS_ENABLED() in common headers 2017-05-17 07:13:04 +02:00
rt286.h ASoC: add RT286 CODEC driver 2014-07-04 18:50:51 +01:00
rt298.h ASoC: add rt298 codec driver 2015-07-09 12:00:11 +01:00
rt5514.h ASoC: rt5514: Add the DMIC initial delay to wait it ready. 2016-10-25 14:25:36 +01:00
rt5640.h ASoC: rt5640: Fill up the IN3's support 2015-10-22 13:33:00 +01:00
rt5645.h ASoC: rt5645: add inv_jd1_1 flag 2017-06-28 18:33:31 +01:00
rt5651.h ASoC: add RT5651 CODEC driver 2014-04-18 18:52:18 +01:00
rt5659.h ASoC: rt5659: add rt5659 codec driver 2015-11-18 12:55:25 +00:00
rt5660.h ASoC: rt5660: add rt5660 codec driver 2016-09-24 19:51:57 +01:00
rt5663.h ASoC: rt5663: Seprate the DC offset between headphone and headset 2017-08-02 11:20:50 +01:00
rt5665.h treewide: Remove remaining executable attributes from source files 2017-02-25 12:12:50 -08:00
rt5670.h ASoC: rt5670: Add IRQ function 2015-03-11 12:08:20 +00:00
s3c24xx_uda134x.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sb.h ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
sb16_csp.h UAPI: (Scripted) Disintegrate include/sound 2012-10-09 09:49:13 +01:00
seq_device.h ALSA: seq: Define driver object in each driver 2015-02-12 14:15:54 +01:00
seq_kernel.h ALSA: seq: Avoid invalid lockdep class warning 2017-11-06 20:25:31 +01:00
seq_midi_emul.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
seq_midi_event.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
seq_oss.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
seq_oss_legacy.h
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seq_virmidi.h ALSA: seq: Fix copy_from_user() call inside lock 2017-10-09 14:10:13 +02:00
sh_dac_audio.h
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sh_fsi.h ASoC: fsi: cleanup sh_fsi.h 2012-12-24 15:57:20 +00:00
simple_card.h ASoC: simple-card: use asoc_simple_card_parse_daifmt() 2016-07-01 17:34:02 +02:00
simple_card_utils.h ASoC: make clock direction configurable in asoc-simple 2017-09-01 11:34:23 +01:00
snd_wavefront.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
soc-dai.h ASoC: core: add optional pcm_new callback for DAI driver 2017-01-20 15:16:23 +00:00
soc-dapm.h ASoC: dapm: Add new widget type for constructing DAPM graphs on DSPs. 2017-06-30 11:55:20 +01:00
soc-dpcm.h ASoC: Make soc_dpcm_debugfs_add() non-fatal 2015-04-09 11:32:29 +01:00
soc-topology.h ASoC: topology: Allow bespoke configuration post widget creation 2017-06-09 18:46:08 +01:00
soc.h Merge remote-tracking branch 'asoc/topic/core' into asoc-next 2017-09-01 12:12:18 +01:00
soundfont.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
spear_dma.h ASoC: Update email-id of Rajeev Kumar 2015-04-28 16:31:01 +01:00
spear_spdif.h ASoC: SPEAr spdif_in: Add spdif IN support 2012-06-23 11:58:10 +01:00
sta32x.h ASoC: sta32x: add device tree binding. 2015-01-27 17:13:25 +00:00
sta350.h ASoC: sta350: add support for bits in miscellaneous registers 2014-05-05 12:52:59 -07:00
tas2552-plat.h ASoC: tas2552: Support TI TAS2552 Amplifier 2014-07-17 17:57:05 +01:00
tas5086.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tea6330t.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
timer.h ALSA: timer: Limit max instances per timer 2017-11-06 10:41:24 +01:00
tlv.h ALSA: control: cage TLV_DB_RANGE_HEAD in kernel land because it was obsoleted 2016-09-25 22:16:49 +02:00
tlv320aic3x.h ASoC: tlv320aic3x: Convert mic bias to a supply widget 2013-02-04 18:35:19 +00:00
tlv320aic32x4.h ASoC: tlv320aic32x4: Add gpio configuration to the codec 2017-07-17 16:22:28 +01:00
tlv320dac33-plat.h
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tpa6130a2-plat.h ASoC: tpa6130a2: Remove model_id from platform data 2011-09-21 16:07:45 +01:00
uda134x.h ASoC: uda134x: Remove is_powered_on_standby from platform data 2014-11-24 18:04:49 +00:00
uda1380.h
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util_mem.h
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vx_core.h ALSA: vx: Use nonatomic PCM ops 2014-09-15 15:52:03 +02:00
wavefront.h
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wm0010.h ASoC: wm0010: Add initial wm0010 DSP driver 2012-08-23 16:12:12 +01:00
wm1250-ev1.h ASoC: Add platform data for WM1250 EV1 GPIOs 2011-09-23 17:05:38 +01:00
wm2000.h ASoC: wm2000: Use clock API integration to configure MCLK divisor 2012-12-24 15:42:35 +00:00
wm2200.h ASoC: wm2200: Provide platform data for MICBIAS configuration 2013-02-05 15:53:07 +00:00
wm5100.h ASoC: Add WM5100 driver 2011-09-20 16:02:16 +01:00
wm8903.h ASoC: WM8903: Fix platform data gpio_cfg confusion 2011-12-06 10:29:22 +00:00
wm8904.h ASoC: wm8904: Correct number of EQ registers 2015-10-20 15:46:09 +01:00
wm8955.h
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wm8960.h ASoC: wm8960: remove 'dres' field from platform data structure 2012-09-21 08:35:06 -04:00
wm8962.h ASoC: wm8962: Let CODEC driver enable and disable its own MCLK 2014-07-31 20:51:26 +01:00
wm8993.h ASoC: wm_hubs: Allow configuration of MICBIAS power up delay via pdata 2012-08-22 19:00:37 +01:00
wm8996.h ASoC: Rename WM8915 to WM8996 2011-08-08 14:30:37 +09:00
wm9081.h
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wm9090.h
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wss.h ALSA: wss: Remove (almost) always NULL parameters 2015-01-02 16:30:08 +01:00