This is a note to let you know that I've just added the patch titled thermal/drivers/broadcom: Fix potential NULL dereference in sr_thermal_probe to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: thermal-drivers-broadcom-fix-potential-null-derefere.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 2ef599fc031f4775a4dbc4889c60784e1806df5b Author: Zheng Yongjun <zhengyongjun3@xxxxxxxxxx> Date: Mon Apr 25 09:29:29 2022 +0000 thermal/drivers/broadcom: Fix potential NULL dereference in sr_thermal_probe [ Upstream commit e20d136ec7d6f309989c447638365840d3424c8e ] platform_get_resource() may return NULL, add proper check to avoid potential NULL dereferencing. Fixes: 250e211057c72 ("thermal: broadcom: Add Stingray thermal driver") Signed-off-by: Zheng Yongjun <zhengyongjun3@xxxxxxxxxx> Link: https://lore.kernel.org/r/20220425092929.90412-1-zhengyongjun3@xxxxxxxxxx Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/thermal/broadcom/sr-thermal.c b/drivers/thermal/broadcom/sr-thermal.c index 475ce2900771..85ab9edd580c 100644 --- a/drivers/thermal/broadcom/sr-thermal.c +++ b/drivers/thermal/broadcom/sr-thermal.c @@ -60,6 +60,9 @@ static int sr_thermal_probe(struct platform_device *pdev) return -ENOMEM; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -ENOENT; + sr_thermal->regs = (void __iomem *)devm_memremap(&pdev->dev, res->start, resource_size(res), MEMREMAP_WB);