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Pierre-Louis Bossart 293385739d ALSA: hda: hdac_ext_stream: fix potential locking issues 
commit 868ddfcef31ff93ea8961b2e81ea7fe12f6f144b upstream.

The code for hdac_ext_stream seems inherited from hdac_stream, and
similar locking issues are present: the use of the bus->reg_lock
spinlock is inconsistent, with only writes to specific fields being
protected.

Apply similar fix as in hdac_stream by protecting all accesses to
'link_locked' and 'decoupled' fields, with a new helper
snd_hdac_ext_stream_decouple_locked() added to simplify code
changes.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210924192417.169243-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-11-26 10:47:23 +01:00
..
ac97
ASoC: ac97: convert to SPDX identifiers
2018-07-02 10:56:09 +01:00
sof
Merge branch 'asoc-5.4' into asoc-next
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ac97_codec.h
ASoC: ac97: convert to SPDX identifiers
2018-07-02 10:56:09 +01:00
aci.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
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ad1816a.h
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adau1373.h
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aess.h
ASoC: TI AESS: add autogating-enable function, callable from architecture code
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ak4xxx-adda.h
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alc5623.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
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asequencer.h
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asound.h
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asoundef.h
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compress_driver.h
ALSA: compress: fix partial_drain completion state
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control.h
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core.h
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cs35l36.h
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designware_i2s.h
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dmaengine_pcm.h
ASoC: dmaengine: Remove unused SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME flag
2019-02-14 16:17:35 +00:00
emu10k1_synth.h
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gus.h
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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_codec.h
ALSA: hda: fix jack detection with Realtek codecs when in D3
2020-10-29 09:57:25 +01:00
hda_component.h
i915/snd_hdac: I915 subcomponent for the snd_hdac
2019-02-08 16:58:59 +01:00
hda_hwdep.h
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2019-05-24 17:27:10 +02:00
hda_i915.h
ALSA: hda: Make audio component support more generic
2018-07-17 22:25:48 +02:00
hda_register.h
ALSA: hdac: clear link output stream mapping
2019-10-07 03:58:48 +02:00
hda_regmap.h
ALSA: hda: Manage concurrent reg access more properly
2020-05-27 17:46:37 +02:00
hda_verbs.h
ALSA: hda: add verbs for stripe control
2019-01-14 19:52:23 +01:00
hdaudio_ext.h
ALSA: hda: hdac_ext_stream: fix potential locking issues
2021-11-26 10:47:23 +01:00
hdaudio.h
ALSA: hda: Manage concurrent reg access more properly
2020-05-27 17:46:37 +02:00
hdmi-codec.h
ASoC: hdmi-codec: Add an op to set callback function for plug event
2019-09-09 14:50:03 +01:00
hwdep.h
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info.h
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initval.h
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intel-nhlt.h
ALSA: hda: intel-nhlt: verify config type
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jack.h
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l3.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
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madera-pdata.h
ASoC: madera: Update SPDX headers
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mixer_oss.h
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mpu401.h
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omap-hdmi-audio.h
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opl3.h
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opl4.h
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pcm_drm_eld.h
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pcm_iec958.h
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pcm_oss.h
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pcm-indirect.h
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pcm.h
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pxa2xx-lib.h
ASoC: pxa: move some functions to pxa2xx-lib
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rawmidi.h
ALSA: rawmidi: Fix racy buffer resize under concurrent accesses
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rt5670.h
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s3c24xx_uda134x.h
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simple_card_utils.h
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simple_card.h
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snd_wavefront.h
ASoC: Updates for v4.15
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soc-acpi-intel-match.h
ASoC: Intel: common: add ACPI matching tables for EHL
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soc-acpi.h
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soc-component.h
ASoC: soc-component: add snd_soc_pcm_component_pcm_free()
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soc-dai.h
ASoC: soc-dai: use bit field for bus_control
2019-08-22 18:30:26 +01:00
soc-dapm.h
Merge branch 'asoc-5.4' into asoc-next
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soc-dpcm.h
ASoC: soc-core: define soc_dpcm_debugfs_add() for non CONFIG_DEBUG_FS
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soc-topology.h
ASoC: topology: unload physical dai link in remove
2019-02-04 11:59:30 +01:00
soc.h
ASoC: soc-core: disable route checks for legacy devices
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sof.h
ASoC: SOF: Add Nocodec machine driver support
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soundfont.h
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