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iio: light: tcs3472: Use iio_push_to_buffers_with_ts() to allow source size runtime check 

Use iio_push_to_buffers_with_ts() to allow source size runtime check.

Also move the structure used as the source to the stack as it is only 16
bytes and not the target of an DMA or similar.

Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://patch.msgid.link/20250802164436.515988-14-jic23@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
pull/1354/merge
Jonathan Cameron 2025-08-02 17:44:33 +01:00
parent 7cacdd9380
commit 66c556aa83
1 changed files with 7 additions and 7 deletions
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14
drivers/iio/light/tcs3472.c
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@ -64,11 +64,6 @@ struct tcs3472_data {
u8 control; u8 control;
u8 atime; u8 atime;
u8 apers; u8 apers;
/* Ensure timestamp is naturally aligned */
struct {
u16 chans[4];
aligned_s64 timestamp;
} scan;
}; };
static const struct iio_event_spec tcs3472_events[] = { static const struct iio_event_spec tcs3472_events[] = {
@ -377,6 +372,11 @@ static irqreturn_t tcs3472_trigger_handler(int irq, void *p)
struct iio_dev *indio_dev = pf->indio_dev; struct iio_dev *indio_dev = pf->indio_dev;
struct tcs3472_data *data = iio_priv(indio_dev); struct tcs3472_data *data = iio_priv(indio_dev);
int i, j = 0; int i, j = 0;
/* Ensure timestamp is naturally aligned */
struct {
u16 chans[4];
aligned_s64 timestamp;
} scan = { };
int ret = tcs3472_req_data(data); int ret = tcs3472_req_data(data);
if (ret < 0) if (ret < 0)
@ -388,10 +388,10 @@ static irqreturn_t tcs3472_trigger_handler(int irq, void *p)
if (ret < 0) if (ret < 0)
goto done; goto done;
data->scan.chans[j++] = ret; scan.chans[j++] = ret;
} }
iio_push_to_buffers_with_timestamp(indio_dev, &data->scan, iio_push_to_buffers_with_ts(indio_dev, &scan, sizeof(scan),
iio_get_time_ns(indio_dev)); iio_get_time_ns(indio_dev));
done: done: