Commit afe2a789 authored by Jonathan Cameron's avatar Jonathan Cameron
Browse files

iio: adc: hx711: Fix buffer alignment in iio_push_to_buffers_with_timestamp() 



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: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Andreas Klinger <ak@it-klinger.de>
Reviewed-by: default avatarNuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-3-jic23@kernel.org
parent 8f884758

drivers/iio/adc/hx711.c

+2 −2
Original line number Diff line number Diff line
@@ -86,9 +86,9 @@ 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