Try to fix attended transfers.
[asterisk/asterisk.git] / channels / chan_sip.c
index 6610563..bad9650 100644 (file)
@@ -11161,12 +11161,18 @@ static struct sip_pvt *get_sip_pvt_byid_locked(const char *callid, const char *t
                                          sip_pvt_ptr->theirtag, sip_pvt_ptr->tag);
                        return 0;
                }
-               sip_pvt_unlock(sip_pvt_ptr);
                
                if (totag)
                        ast_debug(4, "Matched %s call - their tag is %s Our tag is %s\n",
                                          ast_test_flag(&sip_pvt_ptr->flags[0], SIP_OUTGOING) ? "OUTGOING": "INCOMING",
                                          sip_pvt_ptr->theirtag, sip_pvt_ptr->tag);
+
+               /* deadlock avoidance... */
+               while (sip_pvt_ptr->owner && ast_channel_trylock(sip_pvt_ptr->owner)) {
+                       sip_pvt_unlock(sip_pvt_ptr);
+                       usleep(1);
+                       sip_pvt_lock(sip_pvt_ptr);
+               }
        }
        
        return sip_pvt_ptr;