From 0fc539968b28b956df24bc209cdabac00886d46c Mon Sep 17 00:00:00 2001 From: Jonathan Cameron Date: Sat, 1 May 2021 18:01:14 +0100 Subject: iio: prox: srf08: Fix buffer alignment in iio_push_to_buffers_with_timestamp() [ Upstream commit 19f1a254fe4949fff1e67db386409f48cf438bd7 ] 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 uses of iio_push_to_buffers_with_timestamp() Fixes: 78f839029e1d ("iio: distance: srf08: add IIO driver for us ranger") Signed-off-by: Jonathan Cameron Cc: Andreas Klinger Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20210501170121.512209-13-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/proximity/srf08.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/iio/proximity/srf08.c b/drivers/iio/proximity/srf08.c index f2bf783f829a..5e8d3707738b 100644 --- a/drivers/iio/proximity/srf08.c +++ b/drivers/iio/proximity/srf08.c @@ -66,11 +66,11 @@ struct srf08_data { int range_mm; struct mutex lock; - /* - * triggered buffer - * 1x16-bit channel + 3x16 padding + 4x16 timestamp - */ - s16 buffer[8]; + /* Ensure timestamp is naturally aligned */ + struct { + s16 chan; + s64 timestamp __aligned(8); + } scan; /* Sensor-Type */ enum srf08_sensor_type sensor_type; @@ -193,9 +193,9 @@ static irqreturn_t srf08_trigger_handler(int irq, void *p) mutex_lock(&data->lock); - data->buffer[0] = sensor_data; + data->scan.chan = sensor_data; iio_push_to_buffers_with_timestamp(indio_dev, - data->buffer, pf->timestamp); + &data->scan, pf->timestamp); mutex_unlock(&data->lock); err: -- cgit v1.2.3