diff options
| -rw-r--r-- | channels/chan_sip.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/channels/chan_sip.c b/channels/chan_sip.c index 80c8f72e3..1aff65fc8 100644 --- a/channels/chan_sip.c +++ b/channels/chan_sip.c @@ -7752,8 +7752,12 @@ static int transmit_invite(struct sip_pvt *p, int sipmethod, int sdp, int init) add_header(&req, "Allow", ALLOWED_METHODS); add_header(&req, "Supported", SUPPORTED_EXTENSIONS); if (p->options && p->options->addsipheaders && p->owner) { - struct ast_channel *ast = p->owner; /* The owner channel */ - struct varshead *headp = &ast->varshead; + struct ast_channel *chan = p->owner; /* The owner channel */ + struct varshead *headp; + + ast_channel_lock(chan); + + headp = &chan->varshead; if (!headp) ast_log(LOG_WARNING,"No Headp for the channel...ooops!\n"); @@ -7784,6 +7788,8 @@ static int transmit_invite(struct sip_pvt *p, int sipmethod, int sdp, int init) } } } + + ast_channel_unlock(chan); } if (sdp) { if (p->udptl && p->t38.state == T38_LOCAL_DIRECT) { |