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| author | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-05-01 17:53:14 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-05-22 08:32:36 +0100 |
| commit | 01fcf129f61b26d5b3d2d8afb03e770dee271bc8 (patch) | |
| tree | db0ff8b2ef443bd87dab13e8595176773d9461a3 /drivers/iio | |
| parent | a1caeebab07e9d72eec534489f47964782b93ba9 (diff) | |
| download | linux-01fcf129f61b26d5b3d2d8afb03e770dee271bc8.tar.gz | |
iio: adc: ad7923: Fix undersized rx buffer.
Fixes tag is where the max channels became 8, but timestamp space was missing
before that.
Fixes: 851644a60d20 ("iio: adc: ad7923: Add support for the ad7908/ad7918/ad7928")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Daniel Junho <djunho@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501165314.511954-3-jic23@kernel.org
Cc: <Stable@vger.kernel.org>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/adc/ad7923.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/iio/adc/ad7923.c b/drivers/iio/adc/ad7923.c index 9a649745cd0a..069b561ee768 100644 --- a/drivers/iio/adc/ad7923.c +++ b/drivers/iio/adc/ad7923.c @@ -59,8 +59,10 @@ struct ad7923_state { /* * DMA (thus cache coherency maintenance) requires the * transfer buffers to live in their own cache lines. + * Ensure rx_buf can be directly used in iio_push_to_buffers_with_timetamp + * Length = 8 channels + 4 extra for 8 byte timestamp */ - __be16 rx_buf[4] ____cacheline_aligned; + __be16 rx_buf[12] ____cacheline_aligned; __be16 tx_buf[4]; }; |