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linux-stable/sound/hda/ext
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Pierre-Louis Bossart 868ddfcef3 ALSA: hda: hdac_ext_stream: fix potential locking issues 
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>
2021-09-28 10:22:26 +02:00
..
hdac_ext_bus.c ASoC: hdac: make SOF HDA codec driver probe deterministic 2020-09-21 23:57:24 +01:00
hdac_ext_controller.c ALSA: hda: fix kernel-doc warnings 2021-03-02 10:21:36 +01:00
hdac_ext_stream.c ALSA: hda: hdac_ext_stream: fix potential locking issues 2021-09-28 10:22:26 +02:00
Makefile