diff options
| -rw-r--r-- | channels/chan_sip.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/channels/chan_sip.c b/channels/chan_sip.c index 19ef6e0a2..1088e7c8a 100644 --- a/channels/chan_sip.c +++ b/channels/chan_sip.c @@ -2619,6 +2619,11 @@ static int sip_write(struct ast_channel *ast, struct ast_frame *frame) static int sip_fixup(struct ast_channel *oldchan, struct ast_channel *newchan) { struct sip_pvt *p = newchan->tech_pvt; + if (!p) { + ast_log(LOG_WARNING, "No pvt after masquerade. Strange things may happen\n"); + return -1; + } + ast_mutex_lock(&p->lock); if (p->owner != oldchan) { ast_log(LOG_WARNING, "old channel wasn't %p but was %p\n", oldchan, p->owner); |