net: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe()

[mirror_ubuntu-jammy-kernel.git] / drivers / net / arcnet / com20020-pci.c

diff --git a/drivers/net/arcnet/com20020-pci.c b/drivers/net/arcnet/com20020-pci.c
index 3c8f665c15580bcb4c0fcabe2a4c4c41369a59ef..28dccbc0e8d8f73457848815a35772d5d51f5fa8 100644 (file)
--- a/drivers/net/arcnet/com20020-pci.c
+++ b/drivers/net/arcnet/com20020-pci.c
@@ -138,6 +138,9 @@ static int com20020pci_probe(struct pci_dev *pdev,
                return -ENOMEM;
 
        ci = (struct com20020_pci_card_info *)id->driver_data;
+       if (!ci)
+               return -EINVAL;
+
        priv->ci = ci;
        mm = &ci->misc_map;