linux-kernel - [PATCH 2/3] pinctrl: mediatek: pinctrl-paris: Simplify with dev_err

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Message-Id: <20220103101855.17350-2-angelogioacchino.delregno@collabora.com>
Date:   Mon,  3 Jan 2022 11:18:54 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     sean.wang@...nel.org
Cc:     linus.walleij@...aro.org, matthias.bgg@...il.com,
        linux-mediatek@...ts.infradead.org, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        kernel@...labora.com,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Subject: [PATCH 2/3] pinctrl: mediatek: pinctrl-paris: Simplify with dev_err_probe()

Use the dev_err_probe() helper to simplify error handling during probe.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 drivers/pinctrl/mediatek/pinctrl-paris.c | 19 +++++++------------
 1 file changed, 7 insertions(+), 12 deletions(-)

diff --git a/drivers/pinctrl/mediatek/pinctrl-paris.c b/drivers/pinctrl/mediatek/pinctrl-paris.c
index 4c6f6d967b18..70849d393917 100644
--- a/drivers/pinctrl/mediatek/pinctrl-paris.c
+++ b/drivers/pinctrl/mediatek/pinctrl-paris.c
@@ -956,6 +956,7 @@ static int mtk_pctrl_build_state(struct platform_device *pdev)
 int mtk_paris_pinctrl_probe(struct platform_device *pdev,
 			    const struct mtk_pin_soc *soc)
 {
+	struct device *dev = &pdev->dev;
 	struct pinctrl_pin_desc *pins;
 	struct mtk_pinctrl *hw;
 	int err, i;
@@ -968,11 +969,9 @@ int mtk_paris_pinctrl_probe(struct platform_device *pdev,
 	hw->soc = soc;
 	hw->dev = &pdev->dev;
 
-	if (!hw->soc->nbase_names) {
-		dev_err(&pdev->dev,
+	if (!hw->soc->nbase_names)
+		return dev_err_probe(dev, -EINVAL,
 			"SoC should be assigned at least one register base\n");
-		return -EINVAL;
-	}
 
 	hw->base = devm_kmalloc_array(&pdev->dev, hw->soc->nbase_names,
 				      sizeof(*hw->base), GFP_KERNEL);
@@ -997,10 +996,8 @@ int mtk_paris_pinctrl_probe(struct platform_device *pdev,
 	spin_lock_init(&hw->lock);
 
 	err = mtk_pctrl_build_state(pdev);
-	if (err) {
-		dev_err(&pdev->dev, "build state failed: %d\n", err);
-		return -EINVAL;
-	}
+	if (err)
+		return dev_err_probe(dev, err, "build state failed\n");
 
 	/* Copy from internal struct mtk_pin_desc to register to the core */
 	pins = devm_kmalloc_array(&pdev->dev, hw->soc->npins, sizeof(*pins),
@@ -1038,10 +1035,8 @@ int mtk_paris_pinctrl_probe(struct platform_device *pdev,
 
 	/* Build gpiochip should be after pinctrl_enable is done */
 	err = mtk_build_gpiochip(hw, pdev->dev.of_node);
-	if (err) {
-		dev_err(&pdev->dev, "Failed to add gpio_chip\n");
-		return err;
-	}
+	if (err)
+		return dev_err_probe(dev, err, "Failed to add gpio_chip\n");
 
 	platform_set_drvdata(pdev, hw);
 
-- 
2.33.1