From d0f21621f8b2b46661ea066d20705dbf7253db87 Mon Sep 17 00:00:00 2001 From: Nikhil Gautam Date: Tue, 14 Jul 2026 17:01:33 +0530 Subject: iio: light: opt4001: Reject integration times with a non-zero seconds part opt4001_write_raw() only looks at val2 when setting the integration time, so a write such as 1.000600 is silently accepted as 600 us. Return -EINVAL if val is non-zero. Fixes: 9a9608418292 ("iio: light: Add support for TI OPT4001 light sensor") Signed-off-by: Nikhil Gautam Reviewed-by: Andy Shevchenko Cc: Signed-off-by: Jonathan Cameron --- drivers/iio/light/opt4001.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/iio/light/opt4001.c b/drivers/iio/light/opt4001.c index 944923cb8f28..2448d6330489 100644 --- a/drivers/iio/light/opt4001.c +++ b/drivers/iio/light/opt4001.c @@ -269,6 +269,9 @@ static int opt4001_write_raw(struct iio_dev *indio_dev, switch (mask) { case IIO_CHAN_INFO_INT_TIME: + if (val) + return -EINVAL; + int_time = opt4001_als_time_to_index(val2); if (int_time < 0) return int_time; -- cgit v1.2.3