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| author | Guenter Roeck <linux@roeck-us.net> | 2014-05-12 11:20:24 -0700 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2014-05-21 16:02:24 -0700 |
| commit | ceeaa70c0fa7fbf30a0c7a2b07dc895de22583c9 (patch) | |
| tree | 02fd9f156adea87cbff20b213ffd567a3260c77a /drivers/hwmon/emc1403.c | |
| parent | 84899d394e755989a1cc080083080f7695c36467 (diff) | |
| download | lwn-ceeaa70c0fa7fbf30a0c7a2b07dc895de22583c9.tar.gz lwn-ceeaa70c0fa7fbf30a0c7a2b07dc895de22583c9.zip | |
hwmon: (emc1403) Relax hysteresis limit write checks
Writing the hysteresis limit returned -ERANGE if the written hysteresis
was too high or too low. Relax error check and adjust the hysteresis
value to its valid range.
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/emc1403.c')
| -rw-r--r-- | drivers/hwmon/emc1403.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/hwmon/emc1403.c b/drivers/hwmon/emc1403.c index 46220b131153..c62bc044a660 100644 --- a/drivers/hwmon/emc1403.c +++ b/drivers/hwmon/emc1403.c @@ -147,12 +147,7 @@ static ssize_t store_hyst(struct device *dev, goto fail; hyst = limit * 1000 - val; - hyst = DIV_ROUND_CLOSEST(hyst, 1000); - if (hyst < 0 || hyst > 255) { - retval = -ERANGE; - goto fail; - } - + hyst = clamp_val(DIV_ROUND_CLOSEST(hyst, 1000), 0, 255); retval = regmap_write(regmap, 0x21, hyst); if (retval == 0) retval = count; |