linux-kernel - [PATCH v2 02/15] iio: adc: rzg2l_adc: Convert dev_err() to dev_err

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Message-Id: <20241206111337.726244-3-claudiu.beznea.uj@bp.renesas.com>
Date: Fri,  6 Dec 2024 13:13:24 +0200
From: Claudiu <claudiu.beznea@...on.dev>
To: prabhakar.mahadev-lad.rj@...renesas.com,
	jic23@...nel.org,
	lars@...afoo.de,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	geert+renesas@...der.be,
	magnus.damm@...il.com,
	mturquette@...libre.com,
	sboyd@...nel.org,
	p.zabel@...gutronix.de
Cc: claudiu.beznea@...on.dev,
	linux-iio@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-clk@...r.kernel.org,
	Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
Subject: [PATCH v2 02/15] iio: adc: rzg2l_adc: Convert dev_err() to dev_err_probe()

From: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>

Convert all occurrences of dev_err() in the probe path to dev_err_probe().
This improves readability and simplifies the code.

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
---

Changes in v2:
- none, this patch is new

 drivers/iio/adc/rzg2l_adc.c | 64 +++++++++++++------------------------
 1 file changed, 22 insertions(+), 42 deletions(-)

diff --git a/drivers/iio/adc/rzg2l_adc.c b/drivers/iio/adc/rzg2l_adc.c
index cd3a7e46ea53..8a804f81c04b 100644
--- a/drivers/iio/adc/rzg2l_adc.c
+++ b/drivers/iio/adc/rzg2l_adc.c
@@ -313,15 +313,11 @@ static int rzg2l_adc_parse_properties(struct platform_device *pdev, struct rzg2l
 		return -ENOMEM;
 
 	num_channels = device_get_child_node_count(&pdev->dev);
-	if (!num_channels) {
-		dev_err(&pdev->dev, "no channel children\n");
-		return -ENODEV;
-	}
+	if (!num_channels)
+		return dev_err_probe(&pdev->dev, -ENODEV, "no channel children\n");
 
-	if (num_channels > RZG2L_ADC_MAX_CHANNELS) {
-		dev_err(&pdev->dev, "num of channel children out of range\n");
-		return -EINVAL;
-	}
+	if (num_channels > RZG2L_ADC_MAX_CHANNELS)
+		return dev_err_probe(&pdev->dev, -EINVAL, "num of channel children out of range\n");
 
 	chan_array = devm_kcalloc(&pdev->dev, num_channels, sizeof(*chan_array),
 				  GFP_KERNEL);
@@ -445,62 +441,46 @@ static int rzg2l_adc_probe(struct platform_device *pdev)
 		return PTR_ERR(adc->base);
 
 	adc->pclk = devm_clk_get(dev, "pclk");
-	if (IS_ERR(adc->pclk)) {
-		dev_err(dev, "Failed to get pclk");
-		return PTR_ERR(adc->pclk);
-	}
+	if (IS_ERR(adc->pclk))
+		return dev_err_probe(dev, PTR_ERR(adc->pclk), "Failed to get pclk");
 
 	adc->adclk = devm_clk_get(dev, "adclk");
-	if (IS_ERR(adc->adclk)) {
-		dev_err(dev, "Failed to get adclk");
-		return PTR_ERR(adc->adclk);
-	}
+	if (IS_ERR(adc->adclk))
+		return dev_err_probe(dev, PTR_ERR(adc->adclk), "Failed to get adclk");
 
 	adc->adrstn = devm_reset_control_get_exclusive(dev, "adrst-n");
-	if (IS_ERR(adc->adrstn)) {
-		dev_err(dev, "failed to get adrstn\n");
-		return PTR_ERR(adc->adrstn);
-	}
+	if (IS_ERR(adc->adrstn))
+		return dev_err_probe(dev, PTR_ERR(adc->adrstn), "failed to get adrstn\n");
 
 	adc->presetn = devm_reset_control_get_exclusive(dev, "presetn");
-	if (IS_ERR(adc->presetn)) {
-		dev_err(dev, "failed to get presetn\n");
-		return PTR_ERR(adc->presetn);
-	}
+	if (IS_ERR(adc->presetn))
+		return dev_err_probe(dev, PTR_ERR(adc->presetn), "failed to get presetn\n");
 
 	ret = reset_control_deassert(adc->adrstn);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to deassert adrstn pin, %d\n", ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret, "failed to deassert adrstn pin, %d\n", ret);
 
 	ret = devm_add_action_or_reset(&pdev->dev,
 				       rzg2l_adc_reset_assert, adc->adrstn);
 	if (ret) {
-		dev_err(&pdev->dev, "failed to register adrstn assert devm action, %d\n",
-			ret);
-		return ret;
+		return dev_err_probe(&pdev->dev, ret,
+				     "failed to register adrstn assert devm action, %d\n", ret);
 	}
 
 	ret = reset_control_deassert(adc->presetn);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to deassert presetn pin, %d\n", ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret, "failed to deassert presetn pin, %d\n", ret);
 
 	ret = devm_add_action_or_reset(&pdev->dev,
 				       rzg2l_adc_reset_assert, adc->presetn);
 	if (ret) {
-		dev_err(&pdev->dev, "failed to register presetn assert devm action, %d\n",
-			ret);
-		return ret;
+		return dev_err_probe(&pdev->dev, ret,
+				     "failed to register presetn assert devm action, %d\n", ret);
 	}
 
 	ret = rzg2l_adc_hw_init(adc);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to initialize ADC HW, %d\n", ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret, "failed to initialize ADC HW, %d\n", ret);
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)
-- 
2.39.2