net: fix returning void-valued expression warnings

drivers/net/8390.c:37:2: warning: returning void-valued expression
drivers/net/bnx2.c:1635:3: warning: returning void-valued expression
drivers/net/xen-netfront.c:1806:2: warning: returning void-valued expression
net/ipv4/tcp_hybla.c:105:3: warning: returning void-valued expression
net/ipv4/tcp_vegas.c:171:3: warning: returning void-valued expression
net/ipv4/tcp_veno.c:123:3: warning: returning void-valued expression
net/sysctl_net.c:85:2: warning: returning void-valued expression

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 6 insertions, 4 deletions

diff --git a/drivers/net/8390.c b/drivers/net/8390.c
index a499e867f0f4..dc5d2584bd0c 100644
--- a/drivers/net/8390.c
+++ b/drivers/net/8390.c
@@ -34,7 +34,7 @@ struct net_device *__alloc_ei_netdev(int size)
 
 void NS8390_init(struct net_device *dev, int startp)
 {
-        return __NS8390_init(dev, startp);
+        __NS8390_init(dev, startp);
 }
 
 EXPORT_SYMBOL(ei_open);
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 15853be4680a..861387928e6d 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -1631,8 +1631,10 @@ bnx2_set_default_remote_link(struct bnx2 *bp)
 static void
 bnx2_set_default_link(struct bnx2 *bp)
 {
-        if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
-                return bnx2_set_default_remote_link(bp);
+        if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) {
+                bnx2_set_default_remote_link(bp);
+                return;
+        }
 
         bp->autoneg = AUTONEG_SPEED | AUTONEG_FLOW_CTRL;
         bp->req_line_speed = 0;
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index e62018a36133..8bddff150c70 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -1803,7 +1803,7 @@ static void __exit netif_exit(void)
         if (is_initial_xendomain())
                 return;
 
-        return xenbus_unregister_driver(&netfront);
+        xenbus_unregister_driver(&netfront);
 }
 module_exit(netif_exit);