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-rw-r--r--channels/chan_iax2.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/channels/chan_iax2.c b/channels/chan_iax2.c
index dd465365b..bdff92869 100644
--- a/channels/chan_iax2.c
+++ b/channels/chan_iax2.c
@@ -9874,6 +9874,7 @@ static int iax2_poke_peer_cb(void *obj, void *arg, int flags)
static int iax2_poke_peer(struct iax2_peer *peer, int heldcall)
{
+ int callno;
if (!peer->maxms || (!peer->addr.sin_addr.s_addr && !peer->dnsmgr)) {
/* IF we have no IP without dnsmgr, or this isn't to be monitored, return
immediately after clearing things out */
@@ -9883,11 +9884,13 @@ static int iax2_poke_peer(struct iax2_peer *peer, int heldcall)
peer->callno = 0;
return 0;
}
- if (peer->callno > 0) {
+
+ /* The peer could change the callno inside iax2_destroy, since we do deadlock avoidance */
+ if ((callno = peer->callno) > 0) {
ast_log(LOG_NOTICE, "Still have a callno...\n");
- ast_mutex_lock(&iaxsl[peer->callno]);
- iax2_destroy(peer->callno);
- ast_mutex_unlock(&iaxsl[peer->callno]);
+ ast_mutex_lock(&iaxsl[callno]);
+ iax2_destroy(callno);
+ ast_mutex_unlock(&iaxsl[callno]);
}
if (heldcall)
ast_mutex_unlock(&iaxsl[heldcall]);