linux-kernel - [PATCH 3/6] irqchip/renesas-rzv2h: Switch to using dev_err

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Message-ID: <20260121150137.3364865-4-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Wed, 21 Jan 2026 15:01:34 +0000
From: Prabhakar <prabhakar.csengg@...il.com>
To: Thomas Gleixner <tglx@...nel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <magnus.damm@...il.com>
Cc: linux-kernel@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org,
	Prabhakar <prabhakar.csengg@...il.com>,
	Biju Das <biju.das.jz@...renesas.com>,
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH 3/6] irqchip/renesas-rzv2h: Switch to using dev_err_probe()

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Make use of dev_err_probe() to simplify rzv2h_icu_probe_common().

Keep dev_err() for -ENOMEM paths, as dev_err_probe() does not print for
allocation failures, ensuring they remain visible in logs.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
---
 drivers/irqchip/irq-renesas-rzv2h.c | 32 ++++++++++-------------------
 1 file changed, 11 insertions(+), 21 deletions(-)

diff --git a/drivers/irqchip/irq-renesas-rzv2h.c b/drivers/irqchip/irq-renesas-rzv2h.c
index 766b981cf3d8..4aa772ba1a1f 100644
--- a/drivers/irqchip/irq-renesas-rzv2h.c
+++ b/drivers/irqchip/irq-renesas-rzv2h.c
@@ -560,10 +560,8 @@ static int rzv2h_icu_probe_common(struct platform_device *pdev, struct device_no
 	int ret;
 
 	parent_domain = irq_find_host(parent);
-	if (!parent_domain) {
-		dev_err(dev, "cannot find parent domain\n");
-		return -ENODEV;
-	}
+	if (!parent_domain)
+		return dev_err_probe(dev, -ENODEV, "cannot find parent domain\n");
 
 	rzv2h_icu_data = devm_kzalloc(dev, sizeof(*rzv2h_icu_data), GFP_KERNEL);
 	if (!rzv2h_icu_data)
@@ -576,29 +574,21 @@ static int rzv2h_icu_probe_common(struct platform_device *pdev, struct device_no
 		return PTR_ERR(rzv2h_icu_data->base);
 
 	ret = rzv2h_icu_parse_interrupts(rzv2h_icu_data, node);
-	if (ret) {
-		dev_err(dev, "cannot parse interrupts: %d\n", ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(dev, ret, "cannot parse interrupts\n");
 
 	resetn = devm_reset_control_get_exclusive_deasserted(dev, NULL);
-	if (IS_ERR(resetn)) {
-		ret = PTR_ERR(resetn);
-		dev_err(dev, "failed to acquire deasserted reset: %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(resetn))
+		return dev_err_probe(dev, PTR_ERR(resetn),
+				     "failed to acquire deasserted reset\n");
 
 	ret = devm_pm_runtime_enable(dev);
-	if (ret < 0) {
-		dev_err(dev, "devm_pm_runtime_enable failed, %d\n", ret);
-		return ret;
-	}
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "devm_pm_runtime_enable failed\n");
 
 	ret = pm_runtime_resume_and_get(dev);
-	if (ret < 0) {
-		dev_err(dev, "pm_runtime_resume_and_get failed: %d\n", ret);
-		return ret;
-	}
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "pm_runtime_resume_and_get failed\n");
 
 	raw_spin_lock_init(&rzv2h_icu_data->lock);
 
-- 
2.52.0