From ad9da7d39cecd3e92f54149ea0ebca390f33fe69 Mon Sep 17 00:00:00 2001 From: Yasin Lee Date: Fri, 13 Feb 2026 23:14:44 +0800 Subject: iio: proximity: hx9023s: Protect against division by zero in set_samp_freq commit a318cfc0853706f1d6ce682dba660bc455d674ef upstream. Avoid division by zero when sampling frequency is unspecified. Fixes: 60df548277b7 ("iio: proximity: Add driver support for TYHX's HX9023S capacitive proximity sensor") Signed-off-by: Yasin Lee Reviewed-by: Andy Shevchenko Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/proximity/hx9023s.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/iio/proximity/hx9023s.c b/drivers/iio/proximity/hx9023s.c index ad839db6b326..17e00ee2b6f8 100644 --- a/drivers/iio/proximity/hx9023s.c +++ b/drivers/iio/proximity/hx9023s.c @@ -719,6 +719,9 @@ static int hx9023s_set_samp_freq(struct hx9023s_data *data, int val, int val2) struct device *dev = regmap_get_device(data->regmap); unsigned int i, period_ms; + if (!val && !val2) + return -EINVAL; + period_ms = div_u64(NANO, (val * MEGA + val2)); for (i = 0; i < ARRAY_SIZE(hx9023s_samp_freq_table); i++) { -- cgit v1.2.3