linux-kernel - [PATCH v4 13/15] power: supply: olpc_battery: Use devm_power_supply

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Message-Id: <20190108175818.705110-14-lkundrak@v3.sk>
Date:   Tue,  8 Jan 2019 18:58:16 +0100
From:   Lubomir Rintel <lkundrak@...sk>
To:     Andy Shevchenko <andy@...radead.org>,
        Darren Hart <dvhart@...radead.org>,
        platform-driver-x86@...r.kernel.org,
        Russell King <linux@...linux.org.uk>
Cc:     James Cameron <quozl@...top.org>,
        Mark Rutland <mark.rutland@....com>,
        Pavel Machek <pavel@....cz>, Rob Herring <robh+dt@...nel.org>,
        Sebastian Reichel <sre@...nel.org>, x86@...nel.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Lubomir Rintel <lkundrak@...sk>,
        Sebastian Reichel <sebastian.reichel@...labora.com>
Subject: [PATCH v4 13/15] power: supply: olpc_battery: Use devm_power_supply_register()

This simplifies the error handling.

Signed-off-by: Lubomir Rintel <lkundrak@...sk>
Reviewed-by: Sebastian Reichel <sebastian.reichel@...labora.com>

---
Changes since v1:
- This was split off the "power: supply: olpc_battery: Move priv data to
  a struct" patch.

 drivers/power/supply/olpc_battery.c | 19 +++++--------------
 1 file changed, 5 insertions(+), 14 deletions(-)

diff --git a/drivers/power/supply/olpc_battery.c b/drivers/power/supply/olpc_battery.c
index c024aae01cb1..0c9f7ce6b26b 100644
--- a/drivers/power/supply/olpc_battery.c
+++ b/drivers/power/supply/olpc_battery.c
@@ -633,7 +633,7 @@ static int olpc_battery_probe(struct platform_device *pdev)
 	psy_cfg.of_node = pdev->dev.of_node;
 	psy_cfg.drv_data = data;
 
-	data->olpc_ac = power_supply_register(&pdev->dev, &olpc_ac_desc, &psy_cfg);
+	data->olpc_ac = devm_power_supply_register(&pdev->dev, &olpc_ac_desc, &psy_cfg);
 	if (IS_ERR(data->olpc_ac))
 		return PTR_ERR(data->olpc_ac);
 
@@ -648,15 +648,13 @@ static int olpc_battery_probe(struct platform_device *pdev)
 		olpc_bat_desc.num_properties = ARRAY_SIZE(olpc_xo1_bat_props);
 	}
 
-	data->olpc_bat = power_supply_register(&pdev->dev, &olpc_bat_desc, &psy_cfg);
-	if (IS_ERR(olpc_bat)) {
-		ret = PTR_ERR(olpc_bat);
-		goto battery_failed;
-	}
+	data->olpc_bat = devm_power_supply_register(&pdev->dev, &olpc_bat_desc, &psy_cfg);
+	if (IS_ERR(data->olpc_bat))
+		return PTR_ERR(data->olpc_bat);
 
 	ret = device_create_bin_file(&data->olpc_bat->dev, &olpc_bat_eeprom);
 	if (ret)
-		goto eeprom_failed;
+		return ret;
 
 	ret = device_create_file(&data->olpc_bat->dev, &olpc_bat_error);
 	if (ret)
@@ -671,10 +669,6 @@ static int olpc_battery_probe(struct platform_device *pdev)
 
 error_failed:
 	device_remove_bin_file(&data->olpc_bat->dev, &olpc_bat_eeprom);
-eeprom_failed:
-	power_supply_unregister(data->olpc_bat);
-battery_failed:
-	power_supply_unregister(data->olpc_ac);
 	return ret;
 }
 
@@ -684,9 +678,6 @@ static int olpc_battery_remove(struct platform_device *pdev)
 
 	device_remove_file(&data->olpc_bat->dev, &olpc_bat_error);
 	device_remove_bin_file(&data->olpc_bat->dev, &olpc_bat_eeprom);
-	power_supply_unregister(data->olpc_bat);
-	power_supply_unregister(data->olpc_ac);
-
 	return 0;
 }
 
-- 
2.20.1