From 4583b679801c49e969c668693fb5acbdc72812fb Mon Sep 17 00:00:00 2001
From: xiaowei guan <xiaowei.guan@samsung.com>
Date: Thu, 26 Nov 2020 04:03:40 +0800
Subject: [PATCH] Fix memory corruption issue

Rebased #1.
---
 shell/platform/tizen/tizen_vsync_waiter.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/shell/platform/tizen/tizen_vsync_waiter.cc b/shell/platform/tizen/tizen_vsync_waiter.cc
index 01bbda4c341e6..e2bfd74d82772 100644
--- a/shell/platform/tizen/tizen_vsync_waiter.cc
+++ b/shell/platform/tizen/tizen_vsync_waiter.cc
@@ -109,6 +109,10 @@ void TizenVsyncWaiter::TdmClientVblankCallback(
 }
 
 bool TizenVsyncWaiter::AsyncWaitForVsync() {
+  if (nullptr == flutter_engine_) {
+    LoggerD("flutter_engine_ is null");
+    return false;
+  }
   if (vblank_ecore_pipe_) {
     int event_type = VBLANK_LOOP_REQUEST;
     ecore_pipe_write(vblank_ecore_pipe_, &event_type, sizeof(event_type));