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| author |   Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-06-13 16:22:54 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-06-14 11:42:41 +0100 |
| commit | 8f884758966259fa8c50c137ac6d4ce9bb7859db (patch) | |
| tree | d5e23393037dcb6159ca7fc0a9beb694a1d3aa49 /drivers/iio/adc | |
| parent | counter: interrupt-cnt: Add const qualifier for actions_list array (diff) | |
| download | linux-dev-8f884758966259fa8c50c137ac6d4ce9bb7859db.tar.xz linux-dev-8f884758966259fa8c50c137ac6d4ce9bb7859db.zip | |
iio: adc: at91-sama5d2: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of this function.
Fixes: 5e1a1da0f8c9 ("iio: adc: at91-sama5d2_adc: add hw trigger and buffer support")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-2-jic23@kernel.org
Diffstat (limited to 'drivers/iio/adc')
| -rw-r--r-- | drivers/iio/adc/at91-sama5d2_adc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c index 6e8c28675947..ea5ca163d879 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -403,7 +403,8 @@ struct at91_adc_state { struct at91_adc_dma dma_st; struct at91_adc_touch touch_st; struct iio_dev *indio_dev; - u16 buffer[AT91_BUFFER_MAX_HWORDS]; + /* Ensure naturally aligned timestamp */ + u16 buffer[AT91_BUFFER_MAX_HWORDS] __aligned(8); /* * lock to prevent concurrent 'single conversion' requests through * sysfs. |