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

From: AngeloGioacchino Del Regno
Date: Wed Sep 25 2024 - 03:46:49 EST


Il 24/09/24 20:08, Markus Elfring ha scritto:
From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxxxxxxxxx>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>

---
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