linux-kernel - [PATCH v6 08/24] thermal/drivers/renesas/rcar: convert to use devm_request*_irq

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Message-Id: <20250623123627.473612-1-panchuang@vivo.com>
Date: Mon, 23 Jun 2025 20:36:27 +0800
From: Pan Chuang <panchuang@...o.com>
To: Niklas Söderlund <niklas.soderlund@...natech.se>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Zhang Rui <rui.zhang@...el.com>,
	Lukasz Luba <lukasz.luba@....com>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <magnus.damm@...il.com>,
	linux-renesas-soc@...r.kernel.org,
	linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Yangtao Li <frank.li@...o.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Pan Chuang <panchuang@...o.com>
Subject: [PATCH v6 08/24] thermal/drivers/renesas/rcar: convert to use devm_request*_irq_probe()

From: Yangtao Li <frank.li@...o.com>

The new devm_request_*irq_probe API prints an error message by default
when the request fails, and consumers can provide custom error messages.

Converting drivers to use this API has the following benefits:

  1.More than 2,000 lines of code can be saved by removing redundant error
  messages in drivers.

  2.Upper-layer functions can directly return error codes without missing
  debugging information.

  3.Having proper and consistent information about why the device cannot
  be used is useful.

Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Krzysztof Kozlowski <krzk@...nel.org>
Cc: "Uwe Kleine-König" <u.kleine-koenig@...gutronix.de>
Cc: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Cc: AngeloGioacchino Del Regno  <angelogioacchino.delregno@...labora.com>
Signed-off-by: Yangtao Li <frank.li@...o.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
Signed-off-by: Pan Chuang <panchuang@...o.com>
---
 drivers/thermal/renesas/rcar_thermal.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/thermal/renesas/rcar_thermal.c b/drivers/thermal/renesas/rcar_thermal.c
index 00a66ee0a5b0..30cfac39fc4d 100644
--- a/drivers/thermal/renesas/rcar_thermal.c
+++ b/drivers/thermal/renesas/rcar_thermal.c
@@ -444,12 +444,11 @@ static int rcar_thermal_probe(struct platform_device *pdev)
 			idle = 0; /* polling delay is not needed */
 		}
 
-		ret = devm_request_irq(dev, irq, rcar_thermal_irq,
-				       IRQF_SHARED, dev_name(dev), common);
-		if (ret) {
-			dev_err(dev, "irq request failed\n");
+		ret = devm_request_irq_probe(dev, irq, rcar_thermal_irq,
+					     IRQF_SHARED, dev_name(dev),
+					     common, NULL);
+		if (ret)
 			goto error_unregister;
-		}
 
 		/* update ENR bits */
 		if (chip->irq_per_ch)
-- 
2.39.0