tcp: invalidate expired timer handles before dispatching

Type: fix

Change-Id: Icc8cd05cb9c1844a9f8b0399797ad554f4ccf1a1
Signed-off-by: Florin Coras <fcoras@cisco.com>
diff --git a/src/vnet/tcp/tcp.h b/src/vnet/tcp/tcp.h
index 299e76d..2de2527 100644
--- a/src/vnet/tcp/tcp.h
+++ b/src/vnet/tcp/tcp.h
@@ -82,7 +82,7 @@
   TCP_N_TIMERS
 } tcp_timers_e;
 
-typedef void (timer_expiration_handler) (u32 index);
+typedef void (timer_expiration_handler) (u32 index, u32 thread_index);
 
 extern timer_expiration_handler tcp_timer_delack_handler;
 extern timer_expiration_handler tcp_timer_retransmit_handler;