It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.
Fixes: b74f3fdd98c7 ("hwmon: convert it87 to platform driver")
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
---
drivers/hwmon/it87.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index 0e543dbe0a6b..66e465ae6ecc 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -3041,6 +3041,8 @@ static int it87_probe(struct platform_device *pdev)
struct device *hwmon_dev;
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ if (!res)
+ return -EINVAL;
if (!devm_request_region(&pdev->dev, res->start, IT87_EC_EXTENT,
DRVNAME)) {
dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
--
2.25.1
