Thread (3 messages) 3 messages, 2 authors, 2024-10-02

Re: [PATCH] soc: mediatek: mtk-svs: Call of_node_put(np) only once in svs_get_subsys_device()

From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Date: 2024-09-25 07:46:38
Also in: kernel-janitors, linux-mediatek, lkml

Il 24/09/24 20:08, Markus Elfring ha scritto:
From: Markus Elfring <redacted>
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 <redacted>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
quoted hunk ↗ jump to hunk
---
  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
  
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