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linux/sound/hda
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Takashi Iwai 96e503f900 ALSA: hda/i915 - fix list corruption with concurrent probes 
Current hdac_i915 uses a static completion instance to wait
for i915 driver to complete the component bind.

This design is not safe if multiple HDA controllers are active and
communicating with different i915 instances, and can lead to list
corruption and failed audio driver probe.

Fix the design by moving completion mechanism to common acomp
code and remove the related code from hdac_i915.

Fixes: 7b882fe3e3 ("ALSA: hda - handle multiple i915 device instances")
Co-developed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20201006161722.500256-1-kai.vehmanen@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-10-09 16:46:04 +02:00
..
ext ALSA: hda: Use dev_to_hdac_dev macro 2020-05-05 08:58:35 +02:00
array.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
hda_bus_type.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
hdac_bus.c ALSA: hda: avoid reset of sdo_limit 2020-08-19 17:37:06 +02:00
hdac_component.c ALSA: hda/i915 - fix list corruption with concurrent probes 2020-10-09 16:46:04 +02:00
hdac_controller.c ALSA: hda: avoid reset of sdo_limit 2020-08-19 17:37:06 +02:00
hdac_device.c ALSA: hda: fix a runtime pm issue in SOF when integrated GPU is disabled 2020-09-02 19:26:39 +02:00
hdac_i915.c ALSA: hda/i915 - fix list corruption with concurrent probes 2020-10-09 16:46:04 +02:00
hdac_regmap.c ALSA: hda: Manage concurrent reg access more properly 2020-01-13 13:40:41 +01:00
hdac_stream.c ALSA: hda: Add dma stop delay variable 2020-08-05 12:27:47 +02:00
hdac_sysfs.c ALSA: hda: Simplify snd_hdac_refresh_widgets() 2019-07-05 12:01:06 +02:00
hdmi_chmap.c ALSA: hda: Use scnprintf() for printing texts for sysfs/procfs 2020-02-18 10:15:41 +01:00
intel-dsp-config.c ALSA: hda: use consistent HDAudio spelling in comments/docs 2020-09-02 19:31:32 +02:00
intel-nhlt.c ASoC: Updates for v5.8 2020-06-01 20:26:07 +02:00
Kconfig ALSA: hda: Allow setting preallocation again for x86 2020-04-13 22:22:28 +02:00
local.h ALSA: hda: Unexport some local helper functions 2020-05-16 08:29:49 +02:00
Makefile ALSA: hda: add Intel DSP configuration / probe code 2019-10-23 06:31:37 +02:00
trace.c ALSA: hda - Re-add tracepoints to HD-audio core driver 2015-03-23 13:17:58 +01:00
trace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00