linux-kernel - [PATCH 19/21] power: supply: rx51: Use devm_power_supply

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Message-ID: <20240123163653.384385-20-afd@ti.com>
Date: Tue, 23 Jan 2024 10:36:51 -0600
From: Andrew Davis <afd@...com>
To: Sebastian Reichel <sre@...nel.org>,
        Support Opensource
	<support.opensource@...semi.com>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski@...aro.org>,
        Pali Rohár
	<pali@...nel.org>
CC: <linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Andrew Davis
	<afd@...com>
Subject: [PATCH 19/21] power: supply: rx51: Use devm_power_supply_register() helper

Use the device lifecycle managed register function. This helps prevent
mistakes like unregistering out of order in cleanup functions and
forgetting to unregister on error paths.

Signed-off-by: Andrew Davis <afd@...com>
---
 drivers/power/supply/rx51_battery.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/power/supply/rx51_battery.c b/drivers/power/supply/rx51_battery.c
index d532c670661b6..7cdcd415e8684 100644
--- a/drivers/power/supply/rx51_battery.c
+++ b/drivers/power/supply/rx51_battery.c
@@ -197,8 +197,6 @@ static int rx51_battery_probe(struct platform_device *pdev)
 	if (!di)
 		return -ENOMEM;
 
-	platform_set_drvdata(pdev, di);
-
 	di->dev = &pdev->dev;
 	di->bat_desc.name = "rx51-battery";
 	di->bat_desc.type = POWER_SUPPLY_TYPE_BATTERY;
@@ -220,20 +218,13 @@ static int rx51_battery_probe(struct platform_device *pdev)
 	if (IS_ERR(di->channel_vbat))
 		return PTR_ERR(di->channel_vbat);
 
-	di->bat = power_supply_register(di->dev, &di->bat_desc, &psy_cfg);
+	di->bat = devm_power_supply_register(di->dev, &di->bat_desc, &psy_cfg);
 	if (IS_ERR(di->bat))
 		return PTR_ERR(di->bat);
 
 	return 0;
 }
 
-static void rx51_battery_remove(struct platform_device *pdev)
-{
-	struct rx51_device_info *di = platform_get_drvdata(pdev);
-
-	power_supply_unregister(di->bat);
-}
-
 #ifdef CONFIG_OF
 static const struct of_device_id n900_battery_of_match[] = {
 	{.compatible = "nokia,n900-battery", },
@@ -244,7 +235,6 @@ MODULE_DEVICE_TABLE(of, n900_battery_of_match);
 
 static struct platform_driver rx51_battery_driver = {
 	.probe = rx51_battery_probe,
-	.remove_new = rx51_battery_remove,
 	.driver = {
 		.name = "rx51-battery",
 		.of_match_table = of_match_ptr(n900_battery_of_match),
-- 
2.39.2