linux-kernel - [PATCH 03/21] power: supply: ds2760: Use devm_power_supply

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Message-ID: <20240123163653.384385-4-afd@ti.com>
Date: Tue, 23 Jan 2024 10:36:35 -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 03/21] power: supply: ds2760: 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/ds2760_battery.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/power/supply/ds2760_battery.c b/drivers/power/supply/ds2760_battery.c
index 40fba31be1744..7cf4ea06b5003 100644
--- a/drivers/power/supply/ds2760_battery.c
+++ b/drivers/power/supply/ds2760_battery.c
@@ -739,7 +739,7 @@ static int w1_ds2760_add_slave(struct w1_slave *sl)
 	if (current_accum)
 		ds2760_battery_set_current_accum(di, current_accum);
 
-	di->bat = power_supply_register(dev, &di->bat_desc, &psy_cfg);
+	di->bat = devm_power_supply_register(dev, &di->bat_desc, &psy_cfg);
 	if (IS_ERR(di->bat)) {
 		dev_err(di->dev, "failed to register battery\n");
 		retval = PTR_ERR(di->bat);
@@ -762,7 +762,6 @@ static int w1_ds2760_add_slave(struct w1_slave *sl)
 	goto success;
 
 workqueue_failed:
-	power_supply_unregister(di->bat);
 batt_failed:
 di_alloc_failed:
 success:
@@ -777,7 +776,6 @@ static void w1_ds2760_remove_slave(struct w1_slave *sl)
 	cancel_delayed_work_sync(&di->monitor_work);
 	cancel_delayed_work_sync(&di->set_charged_work);
 	destroy_workqueue(di->monitor_wqueue);
-	power_supply_unregister(di->bat);
 }
 
 #ifdef CONFIG_OF
-- 
2.39.2