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hwmon: (jc42) Allow negative hysteresis temperatures 

The driver supports negative high and critical limits, it can return
negative hysteresis values, so there is no good reason to not let the
user write negative hysteresis values.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
hifive-unleashed-5.1
Jean Delvare 2015-01-23 10:27:03 +01:00 committed by Guenter Roeck
parent 2c3b1189fd
commit 9130880a1c
1 changed files with 4 additions and 3 deletions
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7
drivers/hwmon/jc42.c
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@ -304,15 +304,16 @@ static ssize_t set_temp_crit_hyst(struct device *dev,
const char *buf, size_t count)
{
struct jc42_data *data = dev_get_drvdata(dev);
unsigned long val;
long val;
int diff, hyst;
int err;
int ret = count;
if (kstrtoul(buf, 10, &val) < 0)
if (kstrtol(buf, 10, &val) < 0)
return -EINVAL;
val = clamp_val(val, 0, JC42_TEMP_MAX);
val = clamp_val(val, (data->extended ? JC42_TEMP_MIN_EXTENDED :
JC42_TEMP_MIN) - 6000, JC42_TEMP_MAX);
diff = jc42_temp_from_reg(data->temp[t_crit]) - val;
hyst = 0;