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sctp: fix stream update when processing dupcookie 

Since commit 3dbcc105d5 ("sctp: alloc stream info when initializing
asoc"), stream and stream.out info are always alloced when creating
an asoc.

So it's not correct to check !asoc->stream before updating stream
info when processing dupcookie, but would be better to check asoc
state instead.

Fixes: 3dbcc105d5 ("sctp: alloc stream info when initializing asoc")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xin Long 2017-05-23 13:28:54 +08:00 committed by David S. Miller
parent 12e8b570e7
commit 3ab2137915
1 changed files with 3 additions and 1 deletions
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4
net/sctp/associola.c
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@ -1176,7 +1176,9 @@ void sctp_assoc_update(struct sctp_association *asoc,
asoc->ctsn_ack_point = asoc->next_tsn - 1;
asoc->adv_peer_ack_point = asoc->ctsn_ack_point;
if (!asoc->stream) {
if (sctp_state(asoc, COOKIE_WAIT)) {
sctp_stream_free(asoc->stream);
asoc->stream = new->stream;
new->stream = NULL;
}