Dan Carpenter b9dc12e481 hwmon: (adt7470) Prevent divide by zero in adt7470_fan_write()
[ Upstream commit c1ec0cabc36718efc7fe8b4157d41b82d08ec1d2 ]

The "val" variable is controlled by the user and comes from
hwmon_attr_store().  The FAN_RPM_TO_PERIOD() macro divides by "val"
so a zero will crash the system.  Check for that and return -EINVAL.
Negatives are also invalid so return -EINVAL for those too.

Fixes: fc958a61ff6d ("hwmon: (adt7470) Convert to devm_hwmon_device_register_with_info API")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-02-01 17:27:12 +01:00
..
2021-10-02 04:35:09 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2021-04-20 06:50:14 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2021-04-20 06:50:14 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:41 -07:00
2020-09-23 09:42:39 -07:00
2021-04-20 06:50:14 -07:00
2020-09-23 09:42:39 -07:00
2021-04-20 06:50:14 -07:00
2021-06-17 04:21:44 -07:00
2020-09-23 09:42:40 -07:00
2021-06-17 04:21:44 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2019-11-06 14:37:19 -08:00
2019-11-06 14:37:19 -08:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2021-04-20 06:50:14 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00
2020-09-23 09:42:39 -07:00