diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index aa6033c..b2b40f9 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -255,7 +255,7 @@
 #define SCTP_DEBUG_PRINTK_IPADDR(whatever...)
 #define SCTP_ENABLE_DEBUG
 #define SCTP_DISABLE_DEBUG
-#define SCTP_ASSERT(expr, str, func)
+#define SCTP_ASSERT(expr, str, func) BUG_ON(!(expr))
 
 #endif /* SCTP_DEBUG */
 
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index f148f95..e5faa35 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -1262,6 +1262,7 @@
 			   	if (!tchunk->tsn_gap_acked &&
 				    !tchunk->resent &&
 				    tchunk->rtt_in_progress) {
+					tchunk->rtt_in_progress = 0;
 					rtt = jiffies - tchunk->sent_at;
 					sctp_transport_update_rto(transport,
 								  rtt);