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Commit b3461cca authored by Zheng Yongjun's avatar Zheng Yongjun Committed by Greg Kroah-Hartman
Browse files

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: 250e2110 ("thermal: broadcom: Add Stingray thermal driver")
Signed-off-by: default avatarZheng Yongjun <zhengyongjun3@huawei.com>
Link: https://lore.kernel.org/r/20220425092929.90412-1-zhengyongjun3@huawei.com


Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 44937456

drivers/thermal/broadcom/sr-thermal.c

+3 −0
Original line number Diff line number Diff line
@@ -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);