diff options
| -rw-r--r-- | drivers/hwmon/isl28022.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/hwmon/isl28022.c b/drivers/hwmon/isl28022.c index c2e559dde63f..c5a34ceedcdb 100644 --- a/drivers/hwmon/isl28022.c +++ b/drivers/hwmon/isl28022.c @@ -9,6 +9,7 @@ #include <linux/err.h> #include <linux/hwmon.h> #include <linux/i2c.h> +#include <linux/math64.h> #include <linux/module.h> #include <linux/regmap.h> @@ -185,8 +186,8 @@ static int isl28022_read_power(struct device *dev, u32 attr, long *val) ISL28022_REG_POWER, ®val); if (err < 0) return err; - *val = ((51200000L * ((long)data->gain)) / - (long)data->shunt) * (long)regval; + *val = min(div_u64(51200000ULL * data->gain * regval, + data->shunt), LONG_MAX); break; default: return -EOPNOTSUPP; |