From a1975ed1f21a6036b61e649b1efb87171796e32d Mon Sep 17 00:00:00 2001
From: Tercio Gaudencio Filho <terciofilho@gmail.com>
Date: Fri, 9 Aug 2019 13:42:17 -0300
Subject: [PATCH] Fix issue #15.

---
 src/dfu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/dfu.c b/src/dfu.c
index 7c2a107..7351eb6 100644
--- a/src/dfu.c
+++ b/src/dfu.c
@@ -231,6 +231,7 @@ static int dfu_control_class_request(usbd_device *usbd_dev,
                 case STATE_DFU_IDLE: {
                     current_dfu_offset = 0;
                     /* Fall through */
+                    __attribute__ ((fallthrough));
                 }
                 case STATE_DFU_UPLOAD_IDLE: {
                     *buf = (uint8_t*)(APP_BASE_ADDRESS + current_dfu_offset);