hwmon: (max31827) Return closest value in update_interval

When user writes a value to update_interval which does not match the
possible values, instead of returning invalid error, return the closest
value.

Signed-off-by: Daniel Matyas <daniel.matyas@analog.com>
Link: https://lore.kernel.org/r/20231031182158.124608-4-daniel.matyas@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/max31827.c b/drivers/hwmon/max31827.c
index 3b38fdf0ebb2dfa363eb9d331e6bac3787c88c6c..6b7bfacf6f0ad1d062874df639d37f1ce6b87691 100644 (file)
--- a/drivers/hwmon/max31827.c
+++ b/drivers/hwmon/max31827.c
@@ -361,9 +361,8 @@ static int max31827_write(struct device *dev, enum hwmon_sensor_types type,
                               val < max31827_conversions[res])
                                res++;
 
-                       if (res == ARRAY_SIZE(max31827_conversions) ||
-                           val != max31827_conversions[res])
-                               return -EINVAL;
+                       if (res == ARRAY_SIZE(max31827_conversions))
+                               res = ARRAY_SIZE(max31827_conversions) - 1;
 
                        res = FIELD_PREP(MAX31827_CONFIGURATION_CNV_RATE_MASK,
                                         res);