finish if L fails to match

1 files changed, 3 insertions, 0 deletions

diff --git a/dl3.c b/dl3.c
index 17978dd..6399442 100644
--- a/dl3.c
+++ b/dl3.c
@@ -521,6 +521,9 @@ static int send_buffer(libusb_device_handle *handle, int endpoint_out, int endpo
 		decode_rx(&info, buf, size);
 		/* find L' */
 	} while (1);
+
+	if (!info.l_matches)
+		return -1;
 	return 0;
 }