diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index cdfd572..ce7838e 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -6349,21 +6349,25 @@
 	}
 }
 
-int igb_set_spd_dplx(struct igb_adapter *adapter, u16 spddplx)
+int igb_set_spd_dplx(struct igb_adapter *adapter, u32 spd, u8 dplx)
 {
 	struct pci_dev *pdev = adapter->pdev;
 	struct e1000_mac_info *mac = &adapter->hw.mac;
 
 	mac->autoneg = 0;
 
+	/* Make sure dplx is at most 1 bit and lsb of speed is not set
+	 * for the switch() below to work */
+	if ((spd & 1) || (dplx & ~1))
+		goto err_inval;
+
 	/* Fiber NIC's only allow 1000 Gbps Full duplex */
 	if ((adapter->hw.phy.media_type == e1000_media_type_internal_serdes) &&
-		spddplx != (SPEED_1000 + DUPLEX_FULL)) {
-		dev_err(&pdev->dev, "Unsupported Speed/Duplex configuration\n");
-		return -EINVAL;
-	}
+	    spd != SPEED_1000 &&
+	    dplx != DUPLEX_FULL)
+		goto err_inval;
 
-	switch (spddplx) {
+	switch (spd + dplx) {
 	case SPEED_10 + DUPLEX_HALF:
 		mac->forced_speed_duplex = ADVERTISE_10_HALF;
 		break;
@@ -6382,10 +6386,13 @@
 		break;
 	case SPEED_1000 + DUPLEX_HALF: /* not supported */
 	default:
-		dev_err(&pdev->dev, "Unsupported Speed/Duplex configuration\n");
-		return -EINVAL;
+		goto err_inval;
 	}
 	return 0;
+
+err_inval:
+	dev_err(&pdev->dev, "Unsupported Speed/Duplex configuration\n");
+	return -EINVAL;
 }
 
 static int __igb_shutdown(struct pci_dev *pdev, bool *enable_wake)