It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.
Fixes: e95c237d78c0 ("hwmon: (dme1737) Add sch311x support")
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
---
drivers/hwmon/dme1737.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/hwmon/dme1737.c b/drivers/hwmon/dme1737.c
index e3ad4c2d0038..90281a016118 100644
--- a/drivers/hwmon/dme1737.c
+++ b/drivers/hwmon/dme1737.c
@@ -2633,6 +2633,8 @@ static int dme1737_isa_probe(struct platform_device *pdev)
int err;
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ if (!res)
+ return -EINVAL;
if (!devm_request_region(dev, res->start, DME1737_EXTENT, "dme1737")) {
dev_err(dev, "Failed to request region 0x%04x-0x%04x.\n",
(unsigned short)res->start,
--
2.25.1
