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iio: magn: rm3100: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()

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[ Upstream commit b8f939fd20690623cb24845a563e7bc1e4a21482 ]

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.

Here an explicit structure is not used, because this buffer is used in
a non-trivial way for data repacking.

Fixes: 121354b2ec ("iio: magnetometer: Add driver support for PNI RM3100")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Song Qiang <songqiang1304521@gmail.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-6-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jonathan Cameron 2021-06-13 16:22:58 +01:00 committed by Greg Kroah-Hartman
parent c923e9effe
commit 8c85c0f8cb
1 changed files with 2 additions and 1 deletions
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3
drivers/iio/magnetometer/rm3100-core.c
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@ -78,7 +78,8 @@ struct rm3100_data {
bool use_interrupt;
int conversion_time;
int scale;
u8 buffer[RM3100_SCAN_BYTES];
/* Ensure naturally aligned timestamp */
u8 buffer[RM3100_SCAN_BYTES] __aligned(8);
struct iio_trigger *drdy_trig;
/*