Merge branch 'topic/asoc' into for-linus

1 files changed, 14 insertions, 3 deletions

diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index 964e9c0..3ead111 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
@@ -1745,6 +1745,12 @@ int pch_gbe_up(struct pch_gbe_adapter *adapter)
 	struct pch_gbe_rx_ring *rx_ring = adapter->rx_ring;
 	int err;
 
+	/* Ensure we have a valid MAC */
+	if (!is_valid_ether_addr(adapter->hw.mac.addr)) {
+		pr_err("Error: Invalid MAC address\n");
+		return -EINVAL;
+	}
+
 	/* hardware has been reset, we need to reload some things */
 	pch_gbe_set_multi(netdev);
 
@@ -2468,9 +2474,14 @@ static int pch_gbe_probe(struct pci_dev *pdev,
 
 	memcpy(netdev->dev_addr, adapter->hw.mac.addr, netdev->addr_len);
 	if (!is_valid_ether_addr(netdev->dev_addr)) {
-		dev_err(&pdev->dev, "Invalid MAC Address\n");
-		ret = -EIO;
-		goto err_free_adapter;
+		/*
+		 * If the MAC is invalid (or just missing), display a warning
+		 * but do not abort setting up the device. pch_gbe_up will
+		 * prevent the interface from being brought up until a valid MAC
+		 * is set.
+		 */
+		dev_err(&pdev->dev, "Invalid MAC address, "
+		                    "interface disabled.\n");
 	}
 	setup_timer(&adapter->watchdog_timer, pch_gbe_watchdog,
 		    (unsigned long)adapter);