diff options
| author | Yang Yingliang <yangyingliang@huawei.com> | 2021-06-07 17:36:02 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-06-08 00:07:22 +0300 |
| commit | 0bb51a3a385790a4be20085494cf78f70dadf646 (patch) | |
| tree | 4a6c63208d9ab81cbc569054125b7fa44944dedb | |
| parent | 3710e80952cf2dc48257ac9f145b117b5f74e0a5 (diff) | |
| download | linux-0bb51a3a385790a4be20085494cf78f70dadf646.tar.xz | |
net: mvpp2: 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>
| -rw-r--r-- | drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 4 |
1 files changed, 4 insertions, 0 deletions
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' |