sdpd-request: Fix passing zero instead of NULL

diff --git a/src/sdpd-request.c b/src/sdpd-request.c
index ff00df7..93acb24 100644 (file)
--- a/src/sdpd-request.c
+++ b/src/sdpd-request.c
@@ -748,7 +748,7 @@ static int service_attr_req(sdp_req_t *req, sdp_buf_t *buf)
                        cstate_size = sdp_set_cstate_pdu(buf, &newState);
                } else {
                        if (buf->data_size == 0)
-                               sdp_append_to_buf(buf, 0, 0);
+                               sdp_append_to_buf(buf, NULL, 0);
                        cstate_size = sdp_set_cstate_pdu(buf, NULL);
                }
        }