soc: mediatek: mtk-svs: Call of_node_put(np) only once in svs_get_subsys_device()

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 <[e-mail]>
Reviewed-by: AngeloGioacchino Del Regno <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: AngeloGioacchino Del Regno <[e-mail]>

drivers/soc/mediatek/mtk-svs.c

···
 	}
 
 	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;
 }