arcnet: com20020-pci: Fix an error handling path in 'com20020pci_probe()'

If this memory allocation fails, we should go through the error handling
path as done everywhere else in this function before returning.

Signed-off-by: Christophe JAILLET <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/arcnet/com20020-pci.c

···
 
 		card = devm_kzalloc(&pdev->dev, sizeof(struct com20020_dev),
 				    GFP_KERNEL);
-		if (!card)
-			return -ENOMEM;
+		if (!card) {
+			ret = -ENOMEM;
+			goto out_port;
+		}
 
 		card->index = i;
 		card->pci_priv = priv;