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net: tcp: Check pkt before sending RESET

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In certain TCP states we should not try to send RESET segment
to peer. So check this and do not try to use NULL pkt to send
a message.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit is contained in:
Jukka Rissanen 2017-06-09 12:40:12 +03:00
commit 286139e13b
1 changed files with 1 additions and 1 deletions
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2
subsys/net/ip/net_context.c
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@ -778,7 +778,7 @@ static int send_reset(struct net_context *context,
int ret;
ret = net_tcp_prepare_reset(context->tcp, remote, &pkt);
if (ret) {
if (ret || !pkt) {
return ret;
}