FS-11162: [zrtp] Hangup race causing rare crash on zrtp calls

diff --git a/src/switch_rtp.c b/src/switch_rtp.c
index a45a0a66c52fd938a9357bf64a6db02931a15a26..58232552e70cb3c1b30287a608702a6e0daf2b90 100644 (file)
--- a/src/switch_rtp.c
+++ b/src/switch_rtp.c
@@ -1330,6 +1330,10 @@ static int zrtp_send_rtp_callback(const zrtp_stream_t *stream, char *rtp_packet,
        switch_size_t len = rtp_packet_length;
        zrtp_status_t status = zrtp_status_ok;
 
+       if (!rtp_session->sock_output) {
+               return status;
+       }
+
        switch_socket_sendto(rtp_session->sock_output, rtp_session->remote_addr, 0, rtp_packet, &len);
        return status;
 }