Johan Hovold a36b522767 soundwire: fix enumeration completion ... [ Upstream commit c40d6b3249 ] The soundwire subsystem uses two completion structures that allow drivers to wait for soundwire device to become enumerated on the bus and initialised by their drivers, respectively. The code implementing the signalling is currently broken as it does not signal all current and future waiters and also uses the wrong reinitialisation function, which can potentially lead to memory corruption if there are still waiters on the queue. Not signalling future waiters specifically breaks sound card probe deferrals as codec drivers can not tell that the soundwire device is already attached when being reprobed. Some codec runtime PM implementations suffer from similar problems as waiting for enumeration during resume can also timeout despite the device already having been enumerated. Fixes: fb9469e54f ("soundwire: bus: fix race condition with enumeration_complete signaling") Fixes: a90def0681 ("soundwire: bus: fix race condition with initialization_complete signaling") Cc: stable@vger.kernel.org # 5.7 Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Cc: Rander Wang <rander.wang@linux.intel.com> Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20230705123018.30903-2-johan+linaro@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-08-11 15:14:00 +02:00
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bus.c	soundwire: fix enumeration completion	2023-08-11 15:14:00 +02:00
bus.h
bus_type.c	soundwire: bus_type: Avoid lockdep assert in sdw_drv_probe()	2023-03-11 13:57:35 +01:00
cadence_master.c	soundwire: cadence: Drain the RX FIFO after an IO timeout	2023-03-11 13:57:39 +01:00
cadence_master.h	soundwire: cadence: Remove wasted space in response_buf	2023-03-11 13:57:39 +01:00
debugfs.c
dmi-quirks.c	soundwire: dmi-quirks: add new mapping for HP Spectre x360	2023-06-28 10:29:52 +02:00
generic_bandwidth_allocation.c
intel.c
intel.h
intel_init.c
Kconfig
Makefile
master.c
mipi_disco.c
qcom.c	soundwire: qcom: update status correctly with mask	2023-08-03 10:22:33 +02:00
slave.c
stream.c
sysfs_local.h
sysfs_slave.c
sysfs_slave_dpn.c