It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.
Fixes: ab41319eab3b ("hwmon: New driver for the VIA VT1211")
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
---
drivers/hwmon/vt1211.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/hwmon/vt1211.c b/drivers/hwmon/vt1211.c
index 4a5e911d26eb..4b1448e7f1c0 100644
--- a/drivers/hwmon/vt1211.c
+++ b/drivers/hwmon/vt1211.c
@@ -1152,6 +1152,8 @@ static int vt1211_probe(struct platform_device *pdev)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ if (!res)
+ return -EINVAL;
if (!devm_request_region(dev, res->start, resource_size(res),
DRVNAME)) {
dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
--
2.25.1
