power: sbs-battery: Use devm_power_supply_register

Use devm_power_supply_register instead of power_supply_register.
Remove call to power_supply_unregister.

Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Sebastian Reichel <sre@kernel.org>

drivers/power/supply/sbs-battery.c

@@ -894,7 +894,7 @@ skip_gpio:
 		}
 	}
 
-	chip->power_supply = power_supply_register(&client->dev, sbs_desc,
+	chip->power_supply = devm_power_supply_register(&client->dev, sbs_desc,
 						   &psy_cfg);
 	if (IS_ERR(chip->power_supply)) {
 		dev_err(&client->dev,
@@ -926,8 +926,6 @@ static int sbs_remove(struct i2c_client *client)
 	if (chip->gpio_detect)
 		gpio_free(chip->pdata->battery_detect);
 
-	power_supply_unregister(chip->power_supply);
-
 	cancel_delayed_work_sync(&chip->work);
 
 	return 0;