[NET]: cleanup extra semicolons

Spring cleaning time...

There seems to be a lot of places in the network code that have
extra bogus semicolons after conditionals.  Most commonly is a
bogus semicolon after: switch() { }

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index bb9d91a..4664733 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -444,7 +444,7 @@
 		break;
 	default:
 		return -ENOIOCTLCMD;
-	};
+	}
 
 	return put_user(answ, (int __user *)arg);
 }
@@ -1954,7 +1954,8 @@
 	default:
 		err = -ENOPROTOOPT;
 		break;
-	};
+	}
+
 	release_sock(sk);
 	return err;
 }
@@ -2124,7 +2125,7 @@
 		return 0;
 	default:
 		return -ENOPROTOOPT;
-	};
+	}
 
 	if (put_user(len, optlen))
 		return -EFAULT;