linux-kernel - [PATCH v2] irqchip: Simplify with dev_err

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Message-Id: <20240830070504.289450-1-yanzhen@vivo.com>
Date: Fri, 30 Aug 2024 15:05:04 +0800
From: Yan Zhen <yanzhen@...o.com>
To: ckeepax@...nsource.cirrus.com,
	rf@...nsource.cirrus.com,
	tglx@...utronix.de
Cc: linux-sound@...r.kernel.org,
	patches@...nsource.cirrus.com,
	linux-kernel@...r.kernel.org,
	opensource.kernel@...o.com,
	Yan Zhen <yanzhen@...o.com>
Subject: [PATCH v2] irqchip: Simplify with dev_err_probe()

Switch to use dev_err_probe() to simplify the error path and
unify a message template.

Using this helper is totally fine even if err is known to never
be -EPROBE_DEFER.

The benefit compared to a normal dev_err() is the standardized format
of the error code, it being emitted symbolically and the fact that
the error code is returned which allows more compact error paths. 

Signed-off-by: Yan Zhen <yanzhen@...o.com>
---

Changes in v2:
-Rewrite the subject.
-Remove 'ret' from the message.

 drivers/irqchip/irq-madera.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/irqchip/irq-madera.c b/drivers/irqchip/irq-madera.c
index acceb6e7fa95..d5ad4466a140 100644
--- a/drivers/irqchip/irq-madera.c
+++ b/drivers/irqchip/irq-madera.c
@@ -199,9 +199,8 @@ static int madera_irq_probe(struct platform_device *pdev)
 		ret = regmap_update_bits(madera->regmap, MADERA_IRQ1_CTRL,
 					 MADERA_IRQ_POL_MASK, 0);
 		if (ret) {
-			dev_err(&pdev->dev,
-				"Failed to set IRQ polarity: %d\n", ret);
-			return ret;
+			return dev_err_probe(&pdev->dev, ret,
+						"Failed to set IRQ polarity");
 		}
 	}
 
-- 
2.34.1