From: Jonathan Cameron Jonathan.Cameron@huawei.com
stable inclusion from linux-4.19.198 commit 51ef21934d1cc8e8af434a3d8429baeb41a4a91f
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[ Upstream commit 8979b67ec61abc232636400ee8c758a16a73c95f ]
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 structure is not used, because this buffer is also used elsewhere in the driver.
Fixes: 67e17300dc1d ("iio: potentiostat: add LMP91000 support") 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/20210501171352.512953-8-jic23@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/iio/potentiostat/lmp91000.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/iio/potentiostat/lmp91000.c b/drivers/iio/potentiostat/lmp91000.c index 90e895adf9975..68f4f6fa27da3 100644 --- a/drivers/iio/potentiostat/lmp91000.c +++ b/drivers/iio/potentiostat/lmp91000.c @@ -71,8 +71,8 @@ struct lmp91000_data {
struct completion completion; u8 chan_select; - - u32 buffer[4]; /* 64-bit data + 64-bit timestamp */ + /* 64-bit data + 64-bit naturally aligned timestamp */ + u32 buffer[4] __aligned(8); };
static const struct iio_chan_spec lmp91000_channels[] = {