diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index 5aff0844d4d361efc45fb017ca501b7072caa464..52307397e0b1ebcc2be3ebb883c3d9f760f55daf 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -523,11 +523,13 @@ void tipc_bclink_rcv(struct net *net, struct sk_buff *buf)
 			tipc_bclink_unlock(net);
 			tipc_node_unlock(node);
 		} else if (msg_user(msg) == MSG_FRAGMENTER) {
-			tipc_buf_append(&node->bclink.reasm_buf, &buf);
-			if (unlikely(!buf && !node->bclink.reasm_buf))
-				goto unlock;
 			tipc_bclink_lock(net);
 			bclink_accept_pkt(node, seqno);
+			tipc_buf_append(&node->bclink.reasm_buf, &buf);
+			if (unlikely(!buf && !node->bclink.reasm_buf)) {
+				tipc_bclink_unlock(net);
+				goto unlock;
+			}
 			bcl->stats.recv_fragments++;
 			if (buf) {
 				bcl->stats.recv_fragmented++;