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iio: adc: ad7266: Fix potential timestamp alignment issue.

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[ Upstream commit 52d349884738c346961e153f195f4c7fe186fcf4 ]

On architectures where an s64 is only 32-bit aligned insufficient padding
would be left between the earlier elements and the timestamp. Use
aligned_s64 to enforce the correct placement and ensure the storage is
large enough.

Fixes: 54e018da31 ("iio:ad7266: Mark transfer buffer as __be16") # aligned_s64 is much newer.
Reported-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250413103443.2420727-2-jic23@kernel.org
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jonathan Cameron
2025-04-13 11:34:24 +01:00
committed by Greg Kroah-Hartman
parent ec24e62a1d
commit 220192d514
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/adc/ad7266.c
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@@ -44,7 +44,7 @@ struct ad7266_state {
*/
struct {
__be16 sample[2];
s64 timestamp;
aligned_s64 timestamp;
} data __aligned(IIO_DMA_MINALIGN);
};