power: supply: sbs-manager: use dev_err_probe

Introduce usage of dev_err_probe in probe routine, which
makes the code slightly more readable and removes some
lines of code. It also removes PROBE_DEFER errors being
logged by default.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

drivers/power/supply/sbs-manager.c

@@ -294,10 +294,8 @@ static int sbsm_gpio_setup(struct sbsm_data *data)
 	gc->owner = THIS_MODULE;
 
 	ret = devm_gpiochip_add_data(dev, gc, data);
-	if (ret) {
-		dev_err(dev, "devm_gpiochip_add_data failed: %d\n", ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(dev, ret, "devm_gpiochip_add_data failed\n");
 
 	return ret;
 }
@@ -349,11 +347,8 @@ static int sbsm_probe(struct i2c_client *client,
 	data->supported_bats = ret & SBSM_MASK_BAT_SUPPORTED;
 	data->muxc = i2c_mux_alloc(adapter, dev, SBSM_MAX_BATS, 0,
 				   I2C_MUX_LOCKED, &sbsm_select, NULL);
-	if (!data->muxc) {
-		dev_err(dev, "failed to alloc i2c mux\n");
-		ret = -ENOMEM;
-		goto err_mux_alloc;
-	}
+	if (!data->muxc)
+		return dev_err_probe(dev, -ENOMEM, "failed to alloc i2c mux\n");
 	data->muxc->priv = data;
 
 	ret = devm_add_action_or_reset(dev, sbsm_del_mux_adapter, data);
@@ -368,45 +363,29 @@ static int sbsm_probe(struct i2c_client *client,
 				break;
 		}
 	}
-	if (ret) {
-		dev_err(dev, "failed to register i2c mux channel %d\n", i + 1);
-		goto err_mux_register;
-	}
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to register i2c mux channel %d\n", i + 1);
 
-	psy_desc = devm_kmemdup(dev, &sbsm_default_psy_desc,
-				sizeof(struct power_supply_desc),
-				GFP_KERNEL);
-	if (!psy_desc) {
-		ret = -ENOMEM;
-		goto err_psy;
-	}
+	psy_desc = devm_kmemdup(dev, &sbsm_default_psy_desc, sizeof(*psy_desc), GFP_KERNEL);
+	if (!psy_desc)
+		return -ENOMEM;
+
+	psy_desc->name = devm_kasprintf(dev, GFP_KERNEL, "sbsm-%s", dev_name(&client->dev));
+	if (!psy_desc->name)
+		return -ENOMEM;
 
-	psy_desc->name = devm_kasprintf(dev, GFP_KERNEL, "sbsm-%s",
-					dev_name(&client->dev));
-	if (!psy_desc->name) {
-		ret = -ENOMEM;
-		goto err_psy;
-	}
 	ret = sbsm_gpio_setup(data);
 	if (ret < 0)
-		goto err_psy;
+		return ret;
 
 	psy_cfg.drv_data = data;
 	psy_cfg.of_node = dev->of_node;
 	data->psy = devm_power_supply_register(dev, psy_desc, &psy_cfg);
-	if (IS_ERR(data->psy)) {
-		ret = PTR_ERR(data->psy);
-		dev_err(dev, "failed to register power supply %s\n",
-			psy_desc->name);
-		goto err_psy;
-	}
+	if (IS_ERR(data->psy))
+		return dev_err_probe(dev, PTR_ERR(data->psy),
+				     "failed to register power supply %s\n", psy_desc->name);
 
 	return 0;
-
-err_psy:
-err_mux_register:
-err_mux_alloc:
-	return ret;
 }
 
 static const struct i2c_device_id sbsm_ids[] = {