linux-stable/include
Takashi Iwai a536c367b0 ASoC: soc-pcm: Fix DPCM lockdep warning due to nested stream locks
commit 3c75c0ea5d upstream.

The recent change for DPCM locking caused spurious lockdep warnings.
Actually the warnings are false-positive, as those are triggered due
to the nested stream locks for FE and BE.  Since both locks belong to
the same lock class, lockdep sees it as if a deadlock.

For fixing this, we need to take PCM stream locks for BE with the
nested lock primitives.  Since currently snd_pcm_stream_lock*() helper
assumes only the top-level single locking, a new helper function
snd_pcm_stream_lock_irqsave_nested() is defined for a single-depth
nested lock, which is now used in the BE DAI trigger that is always
performed inside a FE stream lock.

Fixes: b2ae806630 ("ASoC: soc-pcm: serialize BE triggers")
Reported-and-tested-by: Hans de Goede <hdegoede@redhat.com>
Reported-and-tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/73018f3c-9769-72ea-0325-b3f8e2381e30@redhat.com
Link: https://lore.kernel.org/alsa-devel/9a0abddd-49e9-872d-2f00-a1697340f786@samsung.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20220119155249.26754-2-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:50:26 +02:00
..
acpi ACPI: APEI: Fix integer overflow in ghes_estatus_pool_init() 2022-11-10 18:15:34 +01:00
asm-generic asm-generic/io.h: suppress endianness warnings for readq() and writeq() 2023-05-11 23:00:15 +09:00
clocksource
crypto crypto: api - Add scaffolding to change completion function signature 2023-05-17 11:50:20 +02:00
drm drm/bridge: Fix returned array size name for atomic_get_input_bus_fmts kdoc 2023-03-22 13:31:26 +01:00
dt-bindings clk: imx8mn: rename vpu_pll to m7_alt_pll 2022-12-31 13:14:12 +01:00
keys
kunit
kvm
linux crypto: api - Add scaffolding to change completion function signature 2023-05-17 11:50:20 +02:00
math-emu
media media: dvbdev: fix build warning due to comments 2022-12-31 13:14:47 +01:00
memory
misc
net netfilter: nf_tables: deactivate anonymous set from preparation phase 2023-05-11 23:00:40 +09:00
pcmcia
ras
rdma
scsi scsi: iscsi_tcp: Fix UAF during logout when accessing the shost ipaddress 2023-02-09 11:26:39 +01:00
soc ARM: at91: pm: avoid soft resetting AC DLL 2022-11-26 09:24:34 +01:00
sound ASoC: soc-pcm: Fix DPCM lockdep warning due to nested stream locks 2023-05-17 11:50:26 +02:00
target scsi: target: Fix multiple LUN_RESET handling 2023-05-11 23:00:26 +09:00
trace net: qrtr: correct types of trace event parameters 2023-05-11 23:00:27 +09:00
uapi btrfs: scrub: reject unsupported scrub flags 2023-05-11 23:00:39 +09:00
vdso
video
xen ACPI: processor: Fix evaluating _PDC method when running as Xen dom0 2023-05-11 23:00:22 +09:00