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authorZheng Yongjun <zhengyongjun3@huawei.com>2022-04-25 12:29:29 +0300
committerDaniel Lezcano <daniel.lezcano@linaro.org>2022-05-19 13:11:52 +0300
commite20d136ec7d6f309989c447638365840d3424c8e (patch)
treecfd59a03e35820a0e3e8249e97640616588de4f4 /drivers/thermal/broadcom
parent077df623c8344e4b50a7ba6c433f9d6857a94d6b (diff)
downloadlinux-e20d136ec7d6f309989c447638365840d3424c8e.tar.xz
thermal/drivers/broadcom: Fix potential NULL dereference in sr_thermal_probe
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@huawei.com> Link: https://lore.kernel.org/r/20220425092929.90412-1-zhengyongjun3@huawei.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'drivers/thermal/broadcom')
-rw-r--r--drivers/thermal/broadcom/sr-thermal.c3
1 files changed, 3 insertions, 0 deletions
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);