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[5.12,551/700] iio: chemical: atlas: Fix buffer alignment in iio_push_to_buffers_with_timestamp()

Message ID 20210712061034.903886722@linuxfoundation.org
State Superseded
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman July 12, 2021, 6:10 a.m. UTC 
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>


[ Upstream commit b0f5d8db7348a6ce5cdd79fba46ebc91eebc8fd9 ]

Variable location for the timestamp, so just use __aligned(8)
to ensure it is always possible to naturally align it.

Found during an audit of all calls of uses of
iio_push_to_buffers_with_timestamp()

Fixes tag is not accurate, but it will need manual backporting beyond
that point if anyone cares.

Fixes: 0d15190f53b4 ("iio: chemical: atlas-ph-sensor: rename atlas-ph-sensor to atlas-sensor")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Cc: Matt Ranostay <matt.ranostay@konsulko.com>
Acked-by: Matt Ranostay <matt.ranostay@konsulko.com>

Link: https://lore.kernel.org/r/20210501171352.512953-6-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

---
 drivers/iio/chemical/atlas-sensor.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

-- 
2.30.2
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Patch

diff --git a/drivers/iio/chemical/atlas-sensor.c b/drivers/iio/chemical/atlas-sensor.c
index cdab9d04dedd..0c8a50de8940 100644
--- a/drivers/iio/chemical/atlas-sensor.c
+++ b/drivers/iio/chemical/atlas-sensor.c
@@ -91,8 +91,8 @@  struct atlas_data {
 	struct regmap *regmap;
 	struct irq_work work;
 	unsigned int interrupt_enabled;
-
-	__be32 buffer[6]; /* 96-bit data + 32-bit pad + 64-bit timestamp */
+	/* 96-bit data + 32-bit pad + 64-bit timestamp */
+	__be32 buffer[6] __aligned(8);
 };
 
 static const struct regmap_config atlas_regmap_config = {