net: remove unnecessary return's

One of my pet coding style peeves is the practice of
adding extra return; at the end of function.
Kill several instances of this in network code.

I suppose some coccinelle wizardy could do this automatically.
Signed-off-by: NStephen Hemminger <stephen@networkplumber.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/batman-adv/gateway_client.c

@@ -389,8 +389,6 @@ void batadv_gw_check_election(struct batadv_priv *bat_priv,
 		batadv_neigh_ifinfo_free_ref(router_gw_tq);
 	if (router_orig_tq)
 		batadv_neigh_ifinfo_free_ref(router_orig_tq);
-
-	return;
 }
 
 /**

net/ceph/osd_client.c

@@ -2082,7 +2082,6 @@ void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg)
 	pr_err("osdc handle_map corrupt msg\n");
 	ceph_msg_dump(msg);
 	up_write(&osdc->map_sem);
-	return;
 }
 
 /*
@@ -2281,7 +2280,6 @@ static void handle_watch_notify(struct ceph_osd_client *osdc,
 
 bad:
 	pr_err("osdc handle_watch_notify corrupt msg\n");
-	return;
 }
 
 /*

net/core/request_sock.c

@@ -221,5 +221,4 @@ void reqsk_fastopen_remove(struct sock *sk, struct request_sock *req,
 out:
 	spin_unlock_bh(&fastopenq->lock);
 	sock_put(lsk);
-	return;
 }

net/ipv4/route.c

@@ -697,7 +697,6 @@ static void update_or_create_fnhe(struct fib_nh *nh, __be32 daddr, __be32 gw,
 
 out_unlock:
 	spin_unlock_bh(&fnhe_lock);
-	return;
 }
 
 static void __ip_do_redirect(struct rtable *rt, struct sk_buff *skb, struct flowi4 *fl4,

net/ipv4/tcp_output.c

@@ -2071,7 +2071,6 @@ void tcp_send_loss_probe(struct sock *sk)
 	if (likely(!err))
 		NET_INC_STATS_BH(sock_net(sk),
 				 LINUX_MIB_TCPLOSSPROBES);
-	return;
 }
 
 /* Push out any pending frames which were held back due to

net/l2tp/l2tp_core.c

@@ -1809,8 +1809,6 @@ void l2tp_session_free(struct l2tp_session *session)
 	}
 
 	kfree(session);
-
-	return;
 }
 EXPORT_SYMBOL_GPL(l2tp_session_free);
 

net/l2tp/l2tp_ppp.c

@@ -454,13 +454,11 @@ static void pppol2tp_session_close(struct l2tp_session *session)
 
 	BUG_ON(session->magic != L2TP_SESSION_MAGIC);
 
-
 	if (sock) {
 		inet_shutdown(sock, 2);
 		/* Don't let the session go away before our socket does */
 		l2tp_session_inc_refcount(session);
 	}
-	return;
 }
 
 /* Really kill the session socket. (Called from sock_put() if
@@ -474,7 +472,6 @@ static void pppol2tp_session_destruct(struct sock *sk)
 		BUG_ON(session->magic != L2TP_SESSION_MAGIC);
 		l2tp_session_dec_refcount(session);
 	}
-	return;
 }
 
 /* Called when the PPPoX socket (session) is closed.

net/mac802154/mib.c

@@ -62,8 +62,6 @@ static void hw_addr_notify(struct work_struct *work)
 		pr_debug("failed changed mask %lx\n", nw->changed);
 
 	kfree(nw);
-
-	return;
 }
 
 static void set_hw_addr_filt(struct net_device *dev, unsigned long changed)
@@ -79,8 +77,6 @@ static void set_hw_addr_filt(struct net_device *dev, unsigned long changed)
 	work->dev = dev;
 	work->changed = changed;
 	queue_work(priv->hw->dev_workqueue, &work->work);
-
-	return;
 }
 
 void mac802154_dev_set_short_addr(struct net_device *dev, u16 val)

net/mac802154/rx.c

@@ -80,7 +80,6 @@ mac802154_subif_rx(struct ieee802154_dev *hw, struct sk_buff *skb, u8 lqi)
 	mac802154_wpans_rx(priv, skb);
 out:
 	dev_kfree_skb(skb);
-	return;
 }
 
 static void mac802154_rx_worker(struct work_struct *work)

net/sctp/transport.c

@@ -652,5 +652,4 @@ void sctp_transport_immediate_rtx(struct sctp_transport *t)
 		if (!mod_timer(&t->T3_rtx_timer, jiffies + t->rto))
 			sctp_transport_hold(t);
 	}
-	return;
 }

net/wireless/chan.c

@@ -701,6 +701,4 @@ cfg80211_get_chan_state(struct wireless_dev *wdev,
 	case NUM_NL80211_IFTYPES:
 		WARN_ON(1);
 	}
-
-	return;
 }