diff options
Diffstat (limited to 'apps')
| -rw-r--r-- | apps/app_chanspy.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/apps/app_chanspy.c b/apps/app_chanspy.c index 45a90ff6d..14ff92be5 100644 --- a/apps/app_chanspy.c +++ b/apps/app_chanspy.c @@ -250,9 +250,10 @@ static int channel_spy(struct ast_channel *chan, struct chanspy_ds *spyee_chansp ast_channel_unlock(chan); ast_mutex_lock(&spyee_chanspy_ds->lock); - if (spyee_chanspy_ds->chan) { - spyee = spyee_chanspy_ds->chan; - ast_channel_lock(spyee); + while ((spyee = spyee_chanspy_ds->chan) && ast_channel_trylock(spyee)) { + /* avoid a deadlock here, just in case spyee is masqueraded and + * chanspy_ds_chan_fixup() is called with the channel locked */ + DEADLOCK_AVOIDANCE(&spyee_chanspy_ds->lock); } ast_mutex_unlock(&spyee_chanspy_ds->lock); |