linux-kernel - [PATCH v2] power: supply: Remove error prints for devm_add_action_or

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Message-ID: <pndzfcekt8w.a.out@axis.com>
Date: Tue, 5 Aug 2025 11:33:35 +0200
From: Waqar Hameed <waqar.hameed@...s.com>
To: Sebastian Reichel <sre@...nel.org>, Matthias Brugger
	<matthias.bgg@...il.com>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>
CC: <kernel@...s.com>, <linux-pm@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-mediatek@...ts.infradead.org>
Subject: [PATCH v2] power: supply: Remove error prints for
 devm_add_action_or_reset()

When `devm_add_action_or_reset()` fails, it is due to a failed memory
allocation and will thus return `-ENOMEM`. `dev_err_probe()` doesn't do
anything when error is `-ENOMEM`. Therefore, remove the useless call to
`dev_err_probe()` when `devm_add_action_or_reset()` fails, and just
return the value instead.

Signed-off-by: Waqar Hameed <waqar.hameed@...s.com>
---
Changes in v2:

* Split the patch to one seperate patch for each sub-system.

Link to v1: https://lore.kernel.org/all/pnd7c0s6ji2.fsf@axis.com/

 drivers/power/supply/mt6370-charger.c | 4 ++--
 drivers/power/supply/rt9467-charger.c | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/power/supply/mt6370-charger.c b/drivers/power/supply/mt6370-charger.c
index 98579998b300..29510af4e595 100644
--- a/drivers/power/supply/mt6370-charger.c
+++ b/drivers/power/supply/mt6370-charger.c
@@ -898,7 +898,7 @@ static int mt6370_chg_probe(struct platform_device *pdev)
 	ret = devm_add_action_or_reset(dev, mt6370_chg_destroy_attach_lock,
 				       &priv->attach_lock);
 	if (ret)
-		return dev_err_probe(dev, ret, "Failed to init attach lock\n");
+		return ret;
 
 	priv->attach = MT6370_ATTACH_STAT_DETACH;
 
@@ -909,7 +909,7 @@ static int mt6370_chg_probe(struct platform_device *pdev)
 
 	ret = devm_add_action_or_reset(dev, mt6370_chg_destroy_wq, priv->wq);
 	if (ret)
-		return dev_err_probe(dev, ret, "Failed to init wq\n");
+		return ret;
 
 	ret = devm_work_autocancel(dev, &priv->bc12_work, mt6370_chg_bc12_work_func);
 	if (ret)
diff --git a/drivers/power/supply/rt9467-charger.c b/drivers/power/supply/rt9467-charger.c
index e9aba9ad393c..e2ff9c4609ef 100644
--- a/drivers/power/supply/rt9467-charger.c
+++ b/drivers/power/supply/rt9467-charger.c
@@ -1218,25 +1218,25 @@ static int rt9467_charger_probe(struct i2c_client *i2c)
 	ret = devm_add_action_or_reset(dev, rt9467_chg_destroy_adc_lock,
 				       &data->adc_lock);
 	if (ret)
-		return dev_err_probe(dev, ret, "Failed to init ADC lock\n");
+		return ret;
 
 	mutex_init(&data->attach_lock);
 	ret = devm_add_action_or_reset(dev, rt9467_chg_destroy_attach_lock,
 				       &data->attach_lock);
 	if (ret)
-		return dev_err_probe(dev, ret, "Failed to init attach lock\n");
+		return ret;
 
 	mutex_init(&data->ichg_ieoc_lock);
 	ret = devm_add_action_or_reset(dev, rt9467_chg_destroy_ichg_ieoc_lock,
 				       &data->ichg_ieoc_lock);
 	if (ret)
-		return dev_err_probe(dev, ret, "Failed to init ICHG/IEOC lock\n");
+		return ret;
 
 	init_completion(&data->aicl_done);
 	ret = devm_add_action_or_reset(dev, rt9467_chg_complete_aicl_done,
 				       &data->aicl_done);
 	if (ret)
-		return dev_err_probe(dev, ret, "Failed to init AICL done completion\n");
+		return ret;
 
 	ret = rt9467_do_charger_init(data);
 	if (ret)

base-commit: 260f6f4fda93c8485c8037865c941b42b9cba5d2
-- 
2.39.5