From b7ad2d99e0744b0330cf0205cc717e5fca57078d Mon Sep 17 00:00:00 2001
From: Cjacker <jianzhong.huang@i-soft.com.cn>
Date: Wed, 25 Oct 2017 15:29:29 +0800
Subject: [PATCH] Also need to check addr

---
 source/detail/platform_spec_posix.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/source/detail/platform_spec_posix.cpp b/source/detail/platform_spec_posix.cpp
index 906aaf93..7f825395 100644
--- a/source/detail/platform_spec_posix.cpp
+++ b/source/detail/platform_spec_posix.cpp
@@ -836,9 +836,9 @@ namespace detail
 			i->second->pos = pos;
 		}
 		auto addr = i->second;
-		XPoint spot;
-		XVaNestedList list;
-		if(addr->input_context) {
+		if(addr && addr->input_context) {
+			XPoint spot;
+			XVaNestedList list;
 			spot.x = pos.x;
 			spot.y = pos.y + addr->size.height;
 			list = ::XVaCreateNestedList(0, XNSpotLocation, &spot,