From 4849eca4fc6fc35fdf3e667110fd8156fe77f90a Mon Sep 17 00:00:00 2001 From: Jiasheng Jiang Date: Mon, 20 Dec 2021 16:38:11 +0800 Subject: [PATCH] power: reset: mt6397: Check for null res pointer [ Upstream commit 1c1348bf056dee665760a3bd1cd30b0be7554fc2 ] The return value of platform_get_resource() needs to be checked. To avoid use of error pointer in case that there is no suitable resource. Fixes: d28c74c10751 ("power: reset: add driver for mt6323 poweroff") Signed-off-by: Jiasheng Jiang Signed-off-by: Sebastian Reichel Signed-off-by: Sasha Levin --- drivers/power/reset/mt6323-poweroff.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/power/reset/mt6323-poweroff.c b/drivers/power/reset/mt6323-poweroff.c index 0532803..d90e76f 100644 --- a/drivers/power/reset/mt6323-poweroff.c +++ b/drivers/power/reset/mt6323-poweroff.c @@ -57,6 +57,9 @@ static int mt6323_pwrc_probe(struct platform_device *pdev) return -ENOMEM; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -EINVAL; + pwrc->base = res->start; pwrc->regmap = mt6397_chip->regmap; pwrc->dev = &pdev->dev; -- 2.7.4