From: Santosh Nayak <santoshprasadnayak@gmail.com>
Date: Tue, 19 Jun 2012 21:27:39 +0000 (+0000)
Subject: netxen: Error return off by one in 'netxen_nic_set_pauseparam()'.
X-Git-Tag: next-20120724~65^2~450
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d8140b2fa09cceb947ac1ac49e0958eb137d0648;p=karo-tx-linux.git

netxen: Error return off by one in 'netxen_nic_set_pauseparam()'.

There are 'NETXEN_NIU_MAX_GBE_PORTS'  GBE ports. Port indexing starts
from zero.
Hence we should also return error for "port == NETXEN_NIU_MAX_GBE_PORTS"

Signed-off-by: Santosh Nayak <santoshprasadnayak@gmail.com>
---

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_ethtool.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_ethtool.c
index 39730403782f..d4f179f96dcb 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_ethtool.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_ethtool.c
@@ -489,7 +489,7 @@ netxen_nic_get_pauseparam(struct net_device *dev,
 	int port = adapter->physical_port;
 
 	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
-		if ((port < 0) || (port > NETXEN_NIU_MAX_GBE_PORTS))
+		if ((port < 0) || (port >= NETXEN_NIU_MAX_GBE_PORTS))
 			return;
 		/* get flow control settings */
 		val = NXRD32(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port));
@@ -534,7 +534,7 @@ netxen_nic_set_pauseparam(struct net_device *dev,
 	int port = adapter->physical_port;
 	/* read mode */
 	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
-		if ((port < 0) || (port > NETXEN_NIU_MAX_GBE_PORTS))
+		if ((port < 0) || (port >= NETXEN_NIU_MAX_GBE_PORTS))
 			return -EIO;
 		/* set flow control */
 		val = NXRD32(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port));