From: Jonathan Cameron Date: Sun, 13 Jun 2021 15:22:55 +0000 (+0100) Subject: iio: adc: hx711: Fix buffer alignment in iio_push_to_buffers_with_timestamp() X-Git-Tag: v4.19.198~222 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=3ce7cd150ef7821508c142f4755fe4c327f79df2;p=users%2Fdwmw2%2Flinux.git iio: adc: hx711: Fix buffer alignment in iio_push_to_buffers_with_timestamp() [ Upstream commit afe2a789fbf7acd1a05407fc7839cc08d23825e3 ] To make code more readable, use a structure to express the channel layout and ensure the timestamp is 8 byte aligned. Found during an audit of all calls of this function. Fixes: d3bf60450d47 ("iio: hx711: add triggered buffer support") Signed-off-by: Jonathan Cameron Cc: Andreas Klinger Reviewed-by: Nuno Sá Link: https://lore.kernel.org/r/20210613152301.571002-3-jic23@kernel.org Signed-off-by: Sasha Levin --- diff --git a/drivers/iio/adc/hx711.c b/drivers/iio/adc/hx711.c index 6c5d81a89aec9..0dc487dd16749 100644 --- a/drivers/iio/adc/hx711.c +++ b/drivers/iio/adc/hx711.c @@ -94,9 +94,9 @@ struct hx711_data { struct mutex lock; /* * triggered buffer - * 2x32-bit channel + 64-bit timestamp + * 2x32-bit channel + 64-bit naturally aligned timestamp */ - u32 buffer[4]; + u32 buffer[4] __aligned(8); /* * delay after a rising edge on SCK until the data is ready DOUT * this is dependent on the hx711 where the datasheet tells a