linux-kernel - [tip: irq/core] irqchip/renesas-intc-irqpin: Convert to platform_driver::remove

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Message-ID: <170905450978.398.7222065170643278037.tip-bot2@tip-bot2>
Date: Tue, 27 Feb 2024 17:21:49 -0000
From:
 tip-bot2 for Uwe Kleine-König <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: u.kleine-koenig@...gutronix.de, Thomas Gleixner <tglx@...utronix.de>,
 x86@...nel.org, linux-kernel@...r.kernel.org, maz@...nel.org
Subject: [tip: irq/core] irqchip/renesas-intc-irqpin: Convert to
 platform_driver::remove_new() callback

The following commit has been merged into the irq/core branch of tip:

Commit-ID:     be5476f6658ac4cc562b4c4ea4c90acd18ee7a29
Gitweb:        https://git.kernel.org/tip/be5476f6658ac4cc562b4c4ea4c90acd18ee7a29
Author:        Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
AuthorDate:    Fri, 22 Dec 2023 23:50:40 +01:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Tue, 27 Feb 2024 18:12:10 +01:00

irqchip/renesas-intc-irqpin: Convert to platform_driver::remove_new() callback

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.

To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Link: https://lore.kernel.org/r/6dc03cf63382d24f954c167aaa988f8e31d6b89d.1703284359.git.u.kleine-koenig@pengutronix.de

---
 drivers/irqchip/irq-renesas-intc-irqpin.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/irqchip/irq-renesas-intc-irqpin.c b/drivers/irqchip/irq-renesas-intc-irqpin.c
index fa19585..9ad3723 100644
--- a/drivers/irqchip/irq-renesas-intc-irqpin.c
+++ b/drivers/irqchip/irq-renesas-intc-irqpin.c
@@ -561,14 +561,13 @@ err0:
 	return ret;
 }
 
-static int intc_irqpin_remove(struct platform_device *pdev)
+static void intc_irqpin_remove(struct platform_device *pdev)
 {
 	struct intc_irqpin_priv *p = platform_get_drvdata(pdev);
 
 	irq_domain_remove(p->irq_domain);
 	pm_runtime_put(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
-	return 0;
 }
 
 static int __maybe_unused intc_irqpin_suspend(struct device *dev)
@@ -585,11 +584,11 @@ static SIMPLE_DEV_PM_OPS(intc_irqpin_pm_ops, intc_irqpin_suspend, NULL);
 
 static struct platform_driver intc_irqpin_device_driver = {
 	.probe		= intc_irqpin_probe,
-	.remove		= intc_irqpin_remove,
+	.remove_new	= intc_irqpin_remove,
 	.driver		= {
-		.name	= "renesas_intc_irqpin",
-		.of_match_table = intc_irqpin_dt_ids,
-		.pm	= &intc_irqpin_pm_ops,
+		.name		= "renesas_intc_irqpin",
+		.of_match_table	= intc_irqpin_dt_ids,
+		.pm		= &intc_irqpin_pm_ops,
 	}
 };