ina238_write_temp() was attempting to clamp the user input but was
throwing away the result. Ensure that we clamp the value to the
appropriate range before it is converted into a register value.
Fixes: 0d9f596b1fe3 ("hwmon: (ina238) Modify the calculation formula to adapt to different chips")
Signed-off-by: Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx>
---
Notes:
Changes in v3:
- New. Split off bugfix from main patch
drivers/hwmon/ina238.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hwmon/ina238.c b/drivers/hwmon/ina238.c
index 5a394eeff676..4d3dc018ead9 100644
--- a/drivers/hwmon/ina238.c
+++ b/drivers/hwmon/ina238.c
@@ -572,7 +572,7 @@ static int ina238_write_temp(struct device *dev, u32 attr, long val)
return -EOPNOTSUPP;
/* Signed */
- regval = clamp_val(val, -40000, 125000);
+ val = clamp_val(val, -40000, 125000);
regval = div_s64(val * 10000, data->config->temp_lsb) << data->config->temp_shift;
regval = clamp_val(regval, S16_MIN, S16_MAX) & (0xffff << data->config->temp_shift);
--
2.51.0
