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net: lwm2m: fixed "LwM2M message is invalid"

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Do not retransmit a message that just has been send successfully.

This case can in particular happen quite frequently if the modem
connection/throughput is quite bad and so there is a high latency.

A message that has to be acknowledged is scheduled for retransmission.
Before retransmission a ack for this message is received that will
cause a reset of the original message. In this case you see a
"LwM2M message is invalid" error message.

Signed-off-by: Andreas Chmielewski <andreas.chmielewski@grandcentrix.net>
This commit is contained in:
Andreas Chmielewski 2022-02-09 19:04:39 +01:00 • committed by Anas Nashif
commit b52f1cdb59
1 changed files with 2 additions and 0 deletions
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subsys/net/lib/lwm2m/lwm2m_engine.c
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@ -918,6 +918,8 @@ void lwm2m_reset_message(struct lwm2m_message *msg, bool release)
coap_reply_clear(msg->reply); coap_reply_clear(msg->reply);
} }
sys_slist_find_and_remove(&msg->ctx->pending_sends, &msg->node);
if (release) { if (release) {
(void)memset(msg, 0, sizeof(*msg)); (void)memset(msg, 0, sizeof(*msg));
} else { } else {