net: aquantia: Fix error return code in aq_pci_probe()

Fix to return error code -ENOMEM from the aq_ndev_alloc() error
handling case instead of 0, as done elsewhere in this function.

Fixes: 23ee07ad ("net: aquantia: Cleanup pci functions module")
Signed-off-by: NWei Yongjun <weiyongjun1@huawei.com>
Acked-by: NIgor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c

@@ -210,8 +210,10 @@ static int aq_pci_probe(struct pci_dev *pdev,
 		goto err_pci_func;
 
 	ndev = aq_ndev_alloc();
-	if (!ndev)
+	if (!ndev) {
+		err = -ENOMEM;
 		goto err_ndev;
+	}
 
 	self = netdev_priv(ndev);
 	self->pdev = pdev;