Only muck with the thread structure if an idle one was found/created.

git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.4@67304 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 4 insertions, 2 deletions

diff --git a/channels/chan_iax2.c b/channels/chan_iax2.c
index 49b95c5c2..438b12f68 100644
--- a/channels/chan_iax2.c
+++ b/channels/chan_iax2.c
@@ -888,8 +888,10 @@ static struct iax2_thread *find_idle_thread(void)
 
 	/* this thread is not processing a full frame (since it is idle),
 	   so ensure that the field for the full frame call number is empty */
-	thread->ffcallno = 0;
-	memset(&thread->ffsin, 0, sizeof(thread->ffsin));
+	if (thread) {
+		thread->ffcallno = 0;
+		memset(&thread->ffsin, 0, sizeof(thread->ffsin));
+	}
 
 	return thread;
 }