diff options
| author | Yang Yingliang <yangyingliang@huawei.com> | 2021-06-09 21:25:15 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-06-09 15:24:43 -0700 |
| commit | db8f7be1e1d64fbf113a456ef94534fbf5e9a9af (patch) | |
| tree | 574459e556504bb8fc562d87b53930e8a7ad31ff /drivers/net/ethernet | |
| parent | daf6e8c9caa0955e8d190a606b1bacf9a903d3c1 (diff) | |
net: sgi: ioc3-eth: check return value after calling platform_get_resource()
It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/sgi/ioc3-eth.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sgi/ioc3-eth.c b/drivers/net/ethernet/sgi/ioc3-eth.c index 6eef0f45b133..2b29fd4cbdf4 100644 --- a/drivers/net/ethernet/sgi/ioc3-eth.c +++ b/drivers/net/ethernet/sgi/ioc3-eth.c @@ -835,6 +835,10 @@ static int ioc3eth_probe(struct platform_device *pdev) int err; regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!regs) { + dev_err(&pdev->dev, "Invalid resource\n"); + return -EINVAL; + } /* get mac addr from one wire prom */ if (ioc3eth_get_mac_addr(regs, mac_addr)) return -EPROBE_DEFER; /* not available yet */ |