From b3b3f66bd47cb6fcee710bb24bdffbf5e7c727c2 Mon Sep 17 00:00:00 2001 From: Kang Chen Date: Wed, 19 Apr 2023 10:07:48 +0800 Subject: thermal/drivers/mediatek: Use devm_of_iomap to avoid resource leak in mtk_thermal_probe [ Upstream commit f05c7b7d9ea9477fcc388476c6f4ade8c66d2d26 ] Smatch reports: 1. mtk_thermal_probe() warn: 'apmixed_base' from of_iomap() not released. 2. mtk_thermal_probe() warn: 'auxadc_base' from of_iomap() not released. The original code forgets to release iomap resource when handling errors, fix it by switch to devm_of_iomap. Fixes: 89945047b166 ("thermal: mediatek: Add tsensor support for V2 thermal system") Signed-off-by: Kang Chen Reviewed-by: Dongliang Mu Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Daniel Lezcano Link: https://lore.kernel.org/r/20230419020749.621257-1-void0red@hust.edu.cn Signed-off-by: Sasha Levin --- drivers/thermal/mtk_thermal.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) (limited to 'drivers/thermal') diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c index 8440692e3890..62f1e691659e 100644 --- a/drivers/thermal/mtk_thermal.c +++ b/drivers/thermal/mtk_thermal.c @@ -1028,7 +1028,12 @@ static int mtk_thermal_probe(struct platform_device *pdev) return -ENODEV; } - auxadc_base = of_iomap(auxadc, 0); + auxadc_base = devm_of_iomap(&pdev->dev, auxadc, 0, NULL); + if (IS_ERR(auxadc_base)) { + of_node_put(auxadc); + return PTR_ERR(auxadc_base); + } + auxadc_phys_base = of_get_phys_base(auxadc); of_node_put(auxadc); @@ -1044,7 +1049,12 @@ static int mtk_thermal_probe(struct platform_device *pdev) return -ENODEV; } - apmixed_base = of_iomap(apmixedsys, 0); + apmixed_base = devm_of_iomap(&pdev->dev, apmixedsys, 0, NULL); + if (IS_ERR(apmixed_base)) { + of_node_put(apmixedsys); + return PTR_ERR(apmixed_base); + } + apmixed_phys_base = of_get_phys_base(apmixedsys); of_node_put(apmixedsys); -- cgit 1.4.1