From 693f6c54e5dfd73fa2ee51b576019621df1d722d Mon Sep 17 00:00:00 2001
From: Kingcom <sorgts@googlemail.com>
Date: Wed, 7 Jan 2015 21:39:40 +0100
Subject: [PATCH] citra-qt: Add check for valid address to call stack

---
 src/citra_qt/debugger/callstack.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/citra_qt/debugger/callstack.cpp b/src/citra_qt/debugger/callstack.cpp
index bcc5d2143..274c5cccd 100644
--- a/src/citra_qt/debugger/callstack.cpp
+++ b/src/citra_qt/debugger/callstack.cpp
@@ -38,6 +38,9 @@ void CallstackWidget::OnCPUStepped()
     {
         ret_addr = Memory::Read32(addr);
         call_addr = ret_addr - 4; //get call address???
+        
+        if (Memory::GetPointer(call_addr) == nullptr)
+            break;
 
         /* TODO (mattvail) clean me, move to debugger interface */
         u32 insn = Memory::Read32(call_addr);