rtmp/conn: initialize err (found by Clang Static Analyzer)
@@ -575,7 +575,7 @@ static int server_handle_packet(struct rtmp_conn *conn, struct mbuf *mb)
static void tcp_recv_handler(struct mbuf *mb_pkt, void *arg)
{
struct rtmp_conn *conn = arg;
- int err;
+ int err = 0;
conn->total_bytes += mbuf_get_left(mb_pkt);
