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Commit 91664385 authored by Jonathan Cameron's avatar Jonathan Cameron Committed by Greg Kroah-Hartman
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iio: adc: ti-ads8688: Fix alignment of buffer in iio_push_to_buffers_with_timestamp() 



[ Upstream commit 61fa5dfa5f52806f5ce37a0ba5712c271eb22f98 ]

Add __aligned(8) to ensure the buffer passed to
iio_push_to_buffers_with_timestamp() is suitable for the naturally
aligned timestamp that will be inserted.

Fixes: f214ff521fb1 ("iio: ti-ads8688: Update buffer allocation for timestamps")
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: default avatarNuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-5-jic23@kernel.org


Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 3e8164cc

drivers/iio/adc/ti-ads8688.c

+2 −1
Original line number Diff line number Diff line
@@ -386,7 +386,8 @@ static irqreturn_t ads8688_trigger_handler(int irq, void *p) 
{

	struct iio_poll_func *pf = p;

	struct iio_dev *indio_dev = pf->indio_dev;

	u16 buffer[ADS8688_MAX_CHANNELS + sizeof(s64)/sizeof(u16)];

	/* Ensure naturally aligned timestamp */

	u16 buffer[ADS8688_MAX_CHANNELS + sizeof(s64)/sizeof(u16)] __aligned(8);

	int i, j = 0;



	for (i = 0; i < indio_dev->masklength; i++) {