netxen: Error return off by one for XG port.

There are  NETXEN_NIU_MAX_XG_PORTS ports.
Port indexing starts from zero.
Hence we should also return error for  'port == NETXEN_NIU_MAX_XG_PORTS'.
Signed-off-by: NSantosh Nayak <santoshprasadnayak@gmail.com>

drivers/net/ethernet/qlogic/netxen/netxen_nic_ethtool.c

@@ -511,7 +511,7 @@ netxen_nic_get_pauseparam(struct net_device *dev,
 				break;
 		}
 	} else if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
-		if ((port < 0) || (port > NETXEN_NIU_MAX_XG_PORTS))
+		if ((port < 0) || (port >= NETXEN_NIU_MAX_XG_PORTS))
 			return;
 		pause->rx_pause = 1;
 		val = NXRD32(adapter, NETXEN_NIU_XG_PAUSE_CTL);
@@ -577,7 +577,7 @@ netxen_nic_set_pauseparam(struct net_device *dev,
 		}
 		NXWR32(adapter, NETXEN_NIU_GB_PAUSE_CTL, val);
 	} else if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
-		if ((port < 0) || (port > NETXEN_NIU_MAX_XG_PORTS))
+		if ((port < 0) || (port >= NETXEN_NIU_MAX_XG_PORTS))
 			return -EIO;
 		val = NXRD32(adapter, NETXEN_NIU_XG_PAUSE_CTL);
 		if (port == 0) {

drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c

@@ -365,7 +365,7 @@ static int netxen_niu_disable_xg_port(struct netxen_adapter *adapter)
 	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
 		return 0;
 
-	if (port > NETXEN_NIU_MAX_XG_PORTS)
+	if (port >= NETXEN_NIU_MAX_XG_PORTS)
 		return -EINVAL;
 
 	mac_cfg = 0;
@@ -392,7 +392,7 @@ static int netxen_p2_nic_set_promisc(struct netxen_adapter *adapter, u32 mode)
 	u32 port = adapter->physical_port;
 	u16 board_type = adapter->ahw.board_type;
 
-	if (port > NETXEN_NIU_MAX_XG_PORTS)
+	if (port >= NETXEN_NIU_MAX_XG_PORTS)
 		return -EINVAL;
 
 	mac_cfg = NXRD32(adapter, NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port));