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From: Markus Elfring <Markus.Elfring@web.de>
To: linux-mediatek@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	Angelo Gioacchino Del Regno
	<angelogioacchino.delregno@collabora.com>,
	Kevin Hilman <khilman@baylibre.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Roger Lu <roger.lu@mediatek.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
	kernel-janitors@vger.kernel.org,
	Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Subject: [PATCH] soc: mediatek: mtk-svs: Call of_node_put(np) only once in svs_get_subsys_device()
Date: Tue, 24 Sep 2024 20:08:15 +0200	[thread overview]
Message-ID: <884f0a5d-e6d3-47dc-8a9e-201bb86b271f@web.de> (raw)

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Tue, 24 Sep 2024 20:00:09 +0200

An of_node_put(np) call was immediately used after a pointer check
for a of_find_device_by_node() call in this function implementation.
Thus call such a function only once instead directly before the check.

This issue was transformed by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/soc/mediatek/mtk-svs.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-svs.c b/drivers/soc/mediatek/mtk-svs.c
index 9a91298c1253..7c349a94b45c 100644
--- a/drivers/soc/mediatek/mtk-svs.c
+++ b/drivers/soc/mediatek/mtk-svs.c
@@ -2133,14 +2133,12 @@ static struct device *svs_get_subsys_device(struct svs_platform *svsp,
 	}

 	pdev = of_find_device_by_node(np);
+	of_node_put(np);
 	if (!pdev) {
-		of_node_put(np);
 		dev_err(svsp->dev, "cannot find pdev by %s\n", node_name);
 		return ERR_PTR(-ENXIO);
 	}

-	of_node_put(np);
-
 	return &pdev->dev;
 }

--
2.46.1


             reply	other threads:[~2024-09-24 18:08 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-24 18:08 Markus Elfring [this message]
2024-09-25  7:46 ` [PATCH] soc: mediatek: mtk-svs: Call of_node_put(np) only once in svs_get_subsys_device() AngeloGioacchino Del Regno
2024-10-02  9:08 ` AngeloGioacchino Del Regno

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