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163cd1059a
linux/include/sound
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Kai Vehmanen 163cd1059a
ASoC: hdac: make SOF HDA codec driver probe deterministic 
To provide backward compatibility to older systems, the SOF HDA driver
allows user to specify which HDMI codec driver to use at runtime via
kernel parameter. This mechanism has a subtle flaw in that it assumes
the codec drivers not to be loaded when the SOF PCI driver is loaded.

The problem is rooted in use of the hdev->type field.
snd_hdac_ext_bus_device_init() initializes this field to HDA_DEV_ASOC.
This signals the HDA core that ASoC drivers should be considered in
driver matching (hda_bus_match()). The SOF and SST drivers continue by
overriding this field to HDA_DEV_LEGACY and proceeding to load driver
modules with request_module(). Correct drivers will get loaded and
attached.

If however the codec drivers are already loaded when
snd_hdac_ext_bus_device_init() is called, the matching will not work as
expected as device type is still set to HDA_DEV_ASOC. Specifically if
hdac-hdmi is attached when machine driver is configured to use hdac-hda,
this leads to out-of-bounds memory access in
hda_dsp_hdmi_build_controls().

Fix the issue by adding codec type as a parameter to
snd_hdac_ext_bus_device_init() and ensuring type is set correctly from
the start.

Fixes: 139c7febad ("ASoC: SOF: Intel: add support for snd-hda-codec-hdmi")
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200921100841.2882662-1-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-09-21 23:57:24 +01:00
..
ac97 ASoC: ac97: convert to SPDX identifiers 2018-07-02 10:56:09 +01:00
sof ASoC: SOF: Add src_hash to sof_ipc_fw_version structure 2020-09-17 15:53:16 +01:00
ac97_codec.h ALSA: ac97: Treat snd_ac97_bus_ops as const 2020-01-03 09:24:08 +01:00
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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
ad1843.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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
asound.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
asoundef.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
compress_driver.h ALSA: compress: fix partial_drain completion state 2020-07-07 11:52:18 +02:00
control.h ALSA: Replace the word "slave" in vmaster API 2020-07-20 10:10:47 +02:00
core.h ALSA: core: Add snd_device_get_state() helper 2020-03-23 18:09:19 +01:00
cs35l33.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
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cs35l35.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cs35l36.h ASoC: cs35l36: Add support for Cirrus CS35L36 Amplifier 2019-02-08 13:00:28 +00:00
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designware_i2s.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
dmaengine_pcm.h ASoC: dmaengine_pcm: export soc_component_to_pcm 2020-06-12 14:18:02 +01:00
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gus.h ALSA: isa/gus: remove -Wmissing-prototypes warnings 2020-07-07 11:59:59 +02:00
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_codec.h ASoC: Updates for v5.9 2020-08-03 14:41:43 +02:00
hda_component.h i915/snd_hdac: I915 subcomponent for the snd_hdac 2019-02-08 16:58:59 +01:00
hda_hwdep.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 32 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: hda: fix VS_LTRC register name 2020-08-27 14:22:17 +01:00
hda_regmap.h ALSA: hda: Manage concurrent reg access more properly 2020-01-13 13:40:41 +01:00
hda_verbs.h ALSA: hda: add verbs for stripe control 2019-01-14 19:52:23 +01:00
hdaudio_ext.h ASoC: hdac: make SOF HDA codec driver probe deterministic 2020-09-21 23:57:24 +01:00
hdaudio.h ALSA: hda: Add dma stop delay variable 2020-08-05 12:27:47 +02:00
hdmi-codec.h ASoC: Updates for v5.9 2020-08-03 14:41:43 +02:00
hwdep.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
i2c.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
info.h ALSA: info: Make snd_info_entry_ops as const 2020-01-03 09:24:18 +01:00
initval.h ALSA: Allow const arrays for legacy resource management helpers 2020-01-05 16:14:26 +01:00
intel-dsp-config.h ALSA: hda: add Intel DSP configuration / probe code 2019-10-23 06:31:37 +02:00
intel-nhlt.h ALSA: Replace zero-length array with flexible-array 2020-05-07 22:30:36 +02:00
jack.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
l3.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
madera-pdata.h ASoC: madera: Update SPDX headers 2019-06-26 12:27:50 +01:00
max9768.h
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memalloc.h ALSA: memalloc: Make SG-buffer helper usable for continuous buffer, too 2020-06-15 18:01:52 +02:00
minors.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
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mpu401.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
omap-hdmi-audio.h ALSA: Replace HTTP links with HTTPS ones 2020-07-19 20:49:25 +02:00
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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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
pcm_params.h ALSA: pcm: More helper macros for reducing snd_pcm_format_t cast 2020-02-10 08:27:08 +01:00
pcm-indirect.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
pcm.h ASoC: Updates for v5.7 2020-03-30 13:43:00 +02:00
pt2258.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
pxa2xx-lib.h ASoC: pxa: remove snd_pcm_ops 2019-10-08 13:47:20 +01:00
rawmidi.h ALSA: rawmidi: Fix racy buffer resize under concurrent accesses 2020-05-07 22:29:14 +02:00
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rt5682.h ASoC: rt5682: Add a property for DMIC delay 2020-03-23 18:17:24 +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
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seq_midi_emul.h ALSA: seq: Constify struct snd_midi_op 2020-01-03 09:24:19 +01:00
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sh_fsi.h ASoC: fsi: convert to SPDX identifiers 2018-08-02 10:56:59 +01:00
simple_card_utils.h ASoC: simple-card-utils: Support configure pin_name for asoc_simple_init_jack 2020-07-16 23:24:12 +01:00
simple_card.h ASoC: simple-card: convert to SPDX identifiers 2018-07-02 10:52:47 +01:00
snd_wavefront.h ASoC: Updates for v4.15 2017-11-13 15:45:57 +01:00
soc-acpi-intel-match.h ASoC: Intel: common: soc-acpi: declare new tables for SoundWire 2020-01-13 15:00:37 +00:00
soc-acpi.h ASoC: Intel: use consistent HDAudio spelling in comments/docs 2020-08-25 20:39:39 +01:00
soc-card.h ASoC: soc-card: add snd_soc_card_remove_dai_link() 2020-05-30 02:11:42 +01:00
soc-component.h ASoC: core: Relocate and expose snd_soc_component_initialize 2020-07-31 19:35:57 +01:00
soc-dai.h ASoC: soc-dai: clarify return value for get_sdw_stream() 2020-09-07 13:15:49 +01:00
soc-dapm.h ASoC: dapm: declare missing structure prototypes 2020-06-25 19:21:01 +01:00
soc-dpcm.h ASoC: export DPCM runtime update functions 2020-03-12 13:30:38 +00:00
soc-link.h ASoC: soc-link: introduce exit() callback 2020-06-23 12:25:37 +01:00
soc-topology.h ASoC: topology: unload physical dai link in remove 2019-02-04 11:59:30 +01:00
soc.h Merge branch 'asoc-5.9' into asoc-5.10 2020-09-17 16:35:38 +01:00
sof.h ASoC: SOF: pm: Fix prepare callback behavior for OF usecase 2020-09-21 17:28:10 +01:00
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vx_core.h ALSA: vx: Constify snd_vx_hardware and snd_vx_ops definitions 2020-01-03 09:24:20 +01:00
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wm8960.h ASoC: wm8960: Support headphone jack detection function 2020-06-15 20:58:33 +01:00
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