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path: root/drivers/hwmon/ina2xx.c
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Diffstat (limited to 'drivers/hwmon/ina2xx.c')
-rw-r--r--drivers/hwmon/ina2xx.c26
1 files changed, 20 insertions, 6 deletions
diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c
index bfd3f3eeabcd..e01feba909c3 100644
--- a/drivers/hwmon/ina2xx.c
+++ b/drivers/hwmon/ina2xx.c
@@ -223,6 +223,7 @@ static int ina2xx_probe(struct i2c_client *client,
struct device *hwmon_dev;
long shunt = 10000; /* default shunt value 10mOhms */
u32 val;
+ int ret;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA))
return -ENODEV;
@@ -247,12 +248,25 @@ static int ina2xx_probe(struct i2c_client *client,
data->config = &ina2xx_config[data->kind];
/* device configuration */
- i2c_smbus_write_word_swapped(client, INA2XX_CONFIG,
- data->config->config_default);
- /* set current LSB to 1mA, shunt is in uOhms */
- /* (equation 13 in datasheet) */
- i2c_smbus_write_word_swapped(client, INA2XX_CALIBRATION,
- data->config->calibration_factor / shunt);
+ ret = i2c_smbus_write_word_swapped(client, INA2XX_CONFIG,
+ data->config->config_default);
+ if (ret < 0) {
+ dev_err(dev,
+ "error writing to the config register: %d", ret);
+ return -ENODEV;
+ }
+
+ /*
+ * Set current LSB to 1mA, shunt is in uOhms
+ * (equation 13 in datasheet).
+ */
+ ret = i2c_smbus_write_word_swapped(client, INA2XX_CALIBRATION,
+ data->config->calibration_factor / shunt);
+ if (ret < 0) {
+ dev_err(dev,
+ "error writing to the calibration register: %d", ret);
+ return -ENODEV;
+ }
data->client = client;
mutex_init(&data->update_lock);