linux-kernel - [PATCH 3/4] leds: sgm3140: Simplify with dev_err

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Date:   Wed, 26 Aug 2020 16:50:12 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Pavel Machek <pavel@....cz>, Dan Murphy <dmurphy@...com>,
        linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzk@...nel.org>
Subject: [PATCH 3/4] leds: sgm3140: Simplify with dev_err_probe()

Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and also it prints the error value.

Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
---
 drivers/leds/leds-sgm3140.c | 27 +++++++++------------------
 1 file changed, 9 insertions(+), 18 deletions(-)

diff --git a/drivers/leds/leds-sgm3140.c b/drivers/leds/leds-sgm3140.c
index 28c8b31fa952..f4f831570f11 100644
--- a/drivers/leds/leds-sgm3140.c
+++ b/drivers/leds/leds-sgm3140.c
@@ -195,30 +195,21 @@ static int sgm3140_probe(struct platform_device *pdev)
 
 	priv->flash_gpio = devm_gpiod_get(&pdev->dev, "flash", GPIOD_OUT_LOW);
 	ret = PTR_ERR_OR_ZERO(priv->flash_gpio);
-	if (ret) {
-		if (ret != -EPROBE_DEFER)
-			dev_err(&pdev->dev,
-				"Failed to request flash gpio: %d\n", ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret,
+				     "Failed to request flash gpio\n");
 
 	priv->enable_gpio = devm_gpiod_get(&pdev->dev, "enable", GPIOD_OUT_LOW);
 	ret = PTR_ERR_OR_ZERO(priv->enable_gpio);
-	if (ret) {
-		if (ret != -EPROBE_DEFER)
-			dev_err(&pdev->dev,
-				"Failed to request enable gpio: %d\n", ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret,
+				     "Failed to request enable gpio\n");
 
 	priv->vin_regulator = devm_regulator_get(&pdev->dev, "vin");
 	ret = PTR_ERR_OR_ZERO(priv->vin_regulator);
-	if (ret) {
-		if (ret != -EPROBE_DEFER)
-			dev_err(&pdev->dev,
-				"Failed to request regulator: %d\n", ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret,
+				     "Failed to request regulator\n");
 
 	child_node = fwnode_get_next_available_child_node(pdev->dev.fwnode,
 							  NULL);
-- 
2.17.1