| Message ID | 20210607143602.4000092-1-yangyingliang@huawei.com |
|---|---|
| State | New |
| Headers | show |
| Series | [net-next] net: mvpp2: check return value after calling platform_get_resource() | expand |
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c index d4fb620f53f3..b0066f64be98 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -7377,6 +7377,10 @@ static int mvpp2_probe(struct platform_device *pdev) return PTR_ERR(priv->lms_base); } else { res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (!res) { + dev_err(&pdev->dev, "Invalid resource\n"); + return -EINVAL; + } if (has_acpi_companion(&pdev->dev)) { /* In case the MDIO memory region is declared in * the ACPI, it can already appear as 'in-use'
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> --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 4 ++++ 1 file changed, 4 insertions(+)