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iio: gyro: adis16260: fix division by zero in write_raw

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Add a validation check for the sampling frequency value before using it
as a divisor. A user writing zero to the sampling_frequency sysfs
attribute triggers a division by zero in the kernel.

Fixes: 089a41985c ("staging: iio: adis16260 digital gyro driver")
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Antoniu Miclaus 2026-03-31 13:13:00 +03:00 committed by Jonathan Cameron
parent 1a77271931
commit 761e8b489e
1 changed files with 3 additions and 0 deletions
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3
drivers/iio/gyro/adis16260.c
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@ -287,6 +287,9 @@ static int adis16260_write_raw(struct iio_dev *indio_dev,
addr = adis16260_addresses[chan->scan_index][1];
return adis_write_reg_16(adis, addr, val);
case IIO_CHAN_INFO_SAMP_FREQ:
if (val <= 0)
return -EINVAL;
if (spi_get_device_id(adis->spi)->driver_data)
t = 256 / val;
else