patch "iio: proximity: hx9023s: Protect against division by zero in" added to char-misc-linus

patch "iio: proximity: hx9023s: Protect against division by zero in" added to char-misc-linus

[gregkh]

This is a note to let you know that I've just added the patch titled

    iio: proximity: hx9023s: Protect against division by zero in

to my char-misc git tree which can be found at
    git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
in the char-misc-linus branch.

The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.

If you have any questions about this process, please let me know.


From a318cfc0853706f1d6ce682dba660bc455d674ef Mon Sep 17 00:00:00 2001
From: Yasin Lee <yasin.lee.x@gmail.com>
Date: Fri, 13 Feb 2026 23:14:44 +0800
Subject: iio: proximity: hx9023s: Protect against division by zero in
 set_samp_freq

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 <yasin.lee.x@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 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++) {
-- 
2.53.0