diff options
| author | Zheng Yongjun <zhengyongjun3@huawei.com> | 2022-04-25 12:29:29 +0300 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2022-05-19 13:11:52 +0300 |
| commit | e20d136ec7d6f309989c447638365840d3424c8e (patch) | |
| tree | cfd59a03e35820a0e3e8249e97640616588de4f4 /drivers/thermal | |
| parent | 077df623c8344e4b50a7ba6c433f9d6857a94d6b (diff) | |
| download | linux-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')
| -rw-r--r-- | drivers/thermal/broadcom/sr-thermal.c | 3 |
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); |