Commit a79c9b38 authored Jun 13, 2021 by Jonathan Cameron Committed by Greg Kroah-Hartman Jul 14, 2021

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: d3bf6045 ("iio: hx711: add triggered buffer support")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Andreas Klinger <ak@it-klinger.de>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-3-jic23@kernel.org


Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 73e804be

drivers/iio/adc/hx711.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -85,9 +85,9 @@ 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