Shunt resistance values greater than the chip's calibration factor make no sense since the actual value written to the register equals: <calibration factor> / <shunt> Bail-out from ina2xx_probe() if the configured value is greater than the calibration factor. Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx> --- drivers/hwmon/ina2xx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c index 24fce2a..12f0e12 100644 --- a/drivers/hwmon/ina2xx.c +++ b/drivers/hwmon/ina2xx.c @@ -299,7 +299,8 @@ static int ina2xx_probe(struct i2c_client *client, data->config = &ina2xx_config[data->kind]; data->client = client; - if (data->rshunt <= 0) + if (data->rshunt <= 0 || + data->rshunt > data->config->calibration_factor) return -ENODEV; ret = ina2xx_init(data); -- 2.1.3 _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
