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From: Pan Chuang <panchuang@vivo.com>
To: "Olivia Mackall" <olivia@selenic.com>,
	"Herbert Xu" <herbert@gondor.apana.org.au>,
	"Hadar Gat" <hadar.gat@arm.com>, "Frank Li" <Frank.Li@nxp.com>,
	"Sascha Hauer" <s.hauer@pengutronix.de>,
	"Pengutronix Kernel Team" <kernel@pengutronix.de>,
	"Fabio Estevam" <festevam@gmail.com>,
	"Jia Jie Ho" <jiajie.ho@starfivetech.com>,
	"Deepak Saxena" <dsaxena@plexity.net>,
	"Pan Chuang" <panchuang@vivo.com>,
	"Takashi Sakamoto" <o-takashi@sakamocchi.jp>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Danilo Krummrich" <dakr@kernel.org>,
	"Aleksander Jan Bajkowski" <olek2@wp.pl>,
	"Uwe Kleine-König (The Capable Hub)"
	<u.kleine-koenig@baylibre.com>,
	linux-crypto@vger.kernel.org (open list:HARDWARE RANDOM NUMBER
	GENERATOR CORE), linux-kernel@vger.kernel.org (open list),
	imx@lists.linux.dev (open list:ARM/FREESCALE IMX / MXC ARM
	ARCHITECTURE),
	linux-arm-kernel@lists.infradead.org (moderated
	list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE)
Subject: [PATCH 1/3] hwrng: drivers - Remove redundant dev_err()/dev_err_probe()
Date: Fri, 10 Jul 2026 18:53:06 +0800	[thread overview]
Message-ID: <20260710105318.376496-2-panchuang@vivo.com> (raw)
In-Reply-To: <20260710105318.376496-1-panchuang@vivo.com>

Since commit 55b48e23f5c4 ("genirq/devres: Add error handling in
devm_request_*_irq()"), devm_request_irq() automatically logs
detailed error messages on failure. Remove the now-redundant
driver-specific dev_err() and dev_err_probe() calls.

Signed-off-by: Pan Chuang <panchuang@vivo.com>
---
 drivers/char/hw_random/airoha-trng.c | 4 +---
 drivers/char/hw_random/cctrng.c      | 2 +-
 drivers/char/hw_random/imx-rngc.c    | 2 +-
 drivers/char/hw_random/jh7110-trng.c | 3 +--
 drivers/char/hw_random/omap-rng.c    | 5 +----
 drivers/char/hw_random/xgene-rng.c   | 2 +-
 6 files changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/char/hw_random/airoha-trng.c b/drivers/char/hw_random/airoha-trng.c
index 076519a2f100..98c131ee9891 100644
--- a/drivers/char/hw_random/airoha-trng.c
+++ b/drivers/char/hw_random/airoha-trng.c
@@ -186,10 +186,8 @@ static int airoha_trng_probe(struct platform_device *pdev)
 	airoha_trng_irq_mask(trng);
 	ret = devm_request_irq(&pdev->dev, irq, airoha_trng_irq, 0,
 			       pdev->name, (void *)trng);
-	if (ret) {
-		dev_err(dev, "Can't get interrupt working.\n");
+	if (ret)
 		return ret;
-	}
 
 	init_completion(&trng->rng_op_done);
 
diff --git a/drivers/char/hw_random/cctrng.c b/drivers/char/hw_random/cctrng.c
index a5be9258037f..a6925211c3b5 100644
--- a/drivers/char/hw_random/cctrng.c
+++ b/drivers/char/hw_random/cctrng.c
@@ -509,7 +509,7 @@ static int cctrng_probe(struct platform_device *pdev)
 	/* register the driver isr function */
 	rc = devm_request_irq(dev, irq, cc_isr, IRQF_SHARED, "cctrng", drvdata);
 	if (rc)
-		return dev_err_probe(dev, rc, "Could not register to interrupt %d\n", irq);
+		return rc;
 	dev_dbg(dev, "Registered to IRQ: %d\n", irq);
 
 	/* Clear all pending interrupts */
diff --git a/drivers/char/hw_random/imx-rngc.c b/drivers/char/hw_random/imx-rngc.c
index 28c56c2d1bf6..bae8cdca13fe 100644
--- a/drivers/char/hw_random/imx-rngc.c
+++ b/drivers/char/hw_random/imx-rngc.c
@@ -296,7 +296,7 @@ static int __init imx_rngc_probe(struct platform_device *pdev)
 			irq, imx_rngc_irq, 0, pdev->name, (void *)rngc);
 	if (ret) {
 		clk_disable_unprepare(rngc->clk);
-		return dev_err_probe(&pdev->dev, ret, "Can't get interrupt working.\n");
+		return ret;
 	}
 
 	if (self_test) {
diff --git a/drivers/char/hw_random/jh7110-trng.c b/drivers/char/hw_random/jh7110-trng.c
index 4712c3c530e4..aee12caab578 100644
--- a/drivers/char/hw_random/jh7110-trng.c
+++ b/drivers/char/hw_random/jh7110-trng.c
@@ -303,8 +303,7 @@ static int starfive_trng_probe(struct platform_device *pdev)
 	ret = devm_request_irq(&pdev->dev, irq, starfive_trng_irq, 0, pdev->name,
 			       (void *)trng);
 	if (ret)
-		return dev_err_probe(&pdev->dev, ret,
-				     "Failed to register interrupt handler\n");
+		return ret;
 
 	trng->hclk = devm_clk_get(&pdev->dev, "hclk");
 	if (IS_ERR(trng->hclk))
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index 5e8b50f15db7..327643ba971c 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -391,11 +391,8 @@ static int of_get_omap_rng_device_details(struct omap_rng_dev *priv,
 
 		err = devm_request_irq(dev, irq, omap4_rng_irq,
 				       IRQF_TRIGGER_NONE, dev_name(dev), priv);
-		if (err) {
-			dev_err(dev, "unable to request irq %d, err = %d\n",
-				irq, err);
+		if (err)
 			return err;
-		}
 
 		/*
 		 * On OMAP4, enabling the shutdown_oflo interrupt is
diff --git a/drivers/char/hw_random/xgene-rng.c b/drivers/char/hw_random/xgene-rng.c
index 1f4b95341c2e..629dc85c3741 100644
--- a/drivers/char/hw_random/xgene-rng.c
+++ b/drivers/char/hw_random/xgene-rng.c
@@ -336,7 +336,7 @@ static int xgene_rng_probe(struct platform_device *pdev)
 	rc = devm_request_irq(&pdev->dev, ctx->irq, xgene_rng_irq_handler, 0,
 				dev_name(&pdev->dev), ctx);
 	if (rc)
-		return dev_err_probe(&pdev->dev, rc, "Could not request RNG alarm IRQ\n");
+		return rc;
 
 	/* Enable IP clock */
 	clk = devm_clk_get_optional_enabled(&pdev->dev, NULL);
-- 
2.34.1



      reply	other threads:[~2026-07-10 10:54 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-10 10:53 [PATCH 0/3] char: Remove redundant error messages on IRQ request failure Pan Chuang
2026-07-10 10:53 ` Pan Chuang [this message]

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