Lars-Peter Clausen 067d9120a3 iio: ad_sigma_delta: Don't put SPI transfer buffer on the stack ... commit 0fb6ee8d0b5e90b72f870f76debc8bd31a742014 upstream. Use a heap allocated memory for the SPI transfer buffer. Using stack memory can corrupt stack memory when using DMA on some systems. This change moves the buffer from the stack of the trigger handler call to the heap of the buffer of the state struct. The size increases takes into account the alignment for the timestamp, which is 8 bytes. The 'data' buffer is split into 'tx_buf' and 'rx_buf', to make a clearer separation of which part of the buffer should be used for TX & RX. Fixes: af3008485e ("iio:adc: Add common code for ADI Sigma Delta devices") Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Link: https://lore.kernel.org/r/20201124123807.19717-1-alexandru.ardelean@analog.com Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-12-30 11:54:19 +01:00
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accel
adc	iio: ad_sigma_delta: Don't put SPI transfer buffer on the stack	2020-12-30 11:54:19 +01:00
common	iio: cros_ec: unify hw fifo attributes into the core file	2020-09-29 17:27:07 +01:00
dac
frequency
gyro
imu	iio: adis. Drop adis_burst struct	2020-09-21 20:01:45 +01:00
timer
buffer_impl.h
buffer-dma.h
buffer-dmaengine.h	iio: buffer-dmaengine: remove non managed alloc/free	2020-09-29 17:27:06 +01:00
buffer.h
configfs.h
consumer.h
driver.h
events.h
hw-consumer.h
iio-opaque.h
iio.h	Staging / IIO driver updates for 5.10-rc1	2020-10-15 09:46:23 -07:00
kfifo_buf.h
machine.h
sw_device.h
sw_trigger.h
sysfs.h
trigger_consumer.h	iio: Add __printf() attributes to various allocation functions	2020-09-21 18:54:18 +01:00
trigger.h
triggered_buffer.h
triggered_event.h
types.h	iio: temperature: mlx90632: Interface to change object ambient temperature	2020-09-13 10:21:37 +01:00