diff --git a/drivers/hwmon/emc2103.c b/drivers/hwmon/emc2103.c
index 9691f66..e7d234b5 100644
--- a/drivers/hwmon/emc2103.c
+++ b/drivers/hwmon/emc2103.c
@@ -451,11 +451,15 @@
 		data->fan_rpm_control = true;
 		break;
 	default:
-		mutex_unlock(&data->update_lock);
-		return -EINVAL;
+		count = -EINVAL;
+		goto err;
 	}
 
-	read_u8_from_i2c(client, REG_FAN_CONF1, &conf_reg);
+	result = read_u8_from_i2c(client, REG_FAN_CONF1, &conf_reg);
+	if (result) {
+		count = result;
+		goto err;
+	}
 
 	if (data->fan_rpm_control)
 		conf_reg |= 0x80;
@@ -463,7 +467,7 @@
 		conf_reg &= ~0x80;
 
 	i2c_smbus_write_byte_data(client, REG_FAN_CONF1, conf_reg);
-
+err:
 	mutex_unlock(&data->update_lock);
 	return count;
 }