From 99a66d5a4ec0fb5e67dd3794168de1ea19ab21db Mon Sep 17 00:00:00 2001
From: Benjamin Valentin <benjamin.valentin@ml-pa.com>
Date: Thu, 23 Jan 2025 19:21:17 +0100
Subject: [PATCH] examples/nanocoap_server: add output if registration fails

---
 examples/nanocoap_server/coap_handler.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/examples/nanocoap_server/coap_handler.c b/examples/nanocoap_server/coap_handler.c
index 86dd39993997..2014d302b53a 100644
--- a/examples/nanocoap_server/coap_handler.c
+++ b/examples/nanocoap_server/coap_handler.c
@@ -252,6 +252,9 @@ static ssize_t _time_handler(coap_pkt_t *pkt, uint8_t *buf, size_t len, coap_req
         if (nanocoap_register_observer(context, pkt) == 0) {
             registered = true;
         }
+        else {
+            puts("_time_handler: can't register observer");
+        }
         break;
     case 1:
         /* unregister */