From 0d9f2531e5dd97f824ded8adefb6c888a5c7423d Mon Sep 17 00:00:00 2001
From: Jon Shallow <supjps-libcoap@jpshallow.com>
Date: Wed, 22 Jun 2022 17:04:45 +0100
Subject: [PATCH] coap_session.c: Free off session's last_token on session
 deletion

---
 src/coap_session.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/coap_session.c b/src/coap_session.c
index 0936ae89..6e80c381 100644
--- a/src/coap_session.c
+++ b/src/coap_session.c
@@ -310,6 +310,7 @@ void coap_session_free(coap_session_t *session) {
       SESSIONS_DELETE(session->context->sessions, session);
   }
 #endif /* COAP_CLIENT_SUPPORT */
+  coap_delete_bin_const(session->last_token);
   coap_log(LOG_DEBUG, "***%s: session %p: closed\n", coap_session_str(session),
            (void *)session);