diff options
| author | Yang Yingliang <yangyingliang@huawei.com> | 2021-06-05 10:31:48 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-06-07 14:02:25 -0700 |
| commit | f1fe19c2cb3fdc92a614cf330ced1613f8f1a681 (patch) | |
| tree | 3b927492f3a9829ad7be522f5b7a60d1de4f7841 /drivers/net/dsa/ocelot/seville_vsc9953.c | |
| parent | 7cf6f56d1631b46502005ad3b20db71bb93509d9 (diff) | |
net: mscc: ocelot: 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>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/ocelot/seville_vsc9953.c')
| -rw-r--r-- | drivers/net/dsa/ocelot/seville_vsc9953.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/dsa/ocelot/seville_vsc9953.c b/drivers/net/dsa/ocelot/seville_vsc9953.c index 84f93a874d50..deae923c8b7a 100644 --- a/drivers/net/dsa/ocelot/seville_vsc9953.c +++ b/drivers/net/dsa/ocelot/seville_vsc9953.c @@ -1206,6 +1206,11 @@ static int seville_probe(struct platform_device *pdev) felix->info = &seville_info_vsc9953; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + err = -EINVAL; + dev_err(&pdev->dev, "Invalid resource\n"); + goto err_alloc_felix; + } felix->switch_base = res->start; ds = kzalloc(sizeof(struct dsa_switch), GFP_KERNEL); |