diff options
| author | Zheng Yongjun <zhengyongjun3@huawei.com> | 2022-04-25 09:29:29 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-09 10:21:11 +0200 |
| commit | 79098339ac2065f4b4352ef5921628970b6f47e6 (patch) | |
| tree | 8488a6d4879a99a9fc3b61d5b15ddc6de67420df | |
| parent | 83603802954068ccd1b8a3f2ccbbaf5e0862acb0 (diff) | |
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@huawei.com>
Link: https://lore.kernel.org/r/20220425092929.90412-1-zhengyongjun3@huawei.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -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); |