From 2c80805165c19966e8242d50facc8ad6f2903c1f Mon Sep 17 00:00:00 2001
From: Roberto Raggi <roberto.raggi@nokia.com>
Date: Wed, 14 Oct 2009 17:12:41 +0200
Subject: [PATCH] Fixed possible crash when searching the canonical symbol.

---
 src/libs/cplusplus/LookupContext.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/libs/cplusplus/LookupContext.cpp b/src/libs/cplusplus/LookupContext.cpp
index e04ee2a1b80..b3fe9f0ed02 100644
--- a/src/libs/cplusplus/LookupContext.cpp
+++ b/src/libs/cplusplus/LookupContext.cpp
@@ -581,6 +581,8 @@ Symbol *LookupContext::canonicalSymbol(Symbol *symbol,
                                        NamespaceBinding *globalNamespace)
 {
     Symbol *canonicalSymbol = LookupContext::canonicalSymbol(symbol);
+    if (! canonicalSymbol)
+        return 0;
 
     if (Identifier *symbolId = canonicalSymbol->identifier()) {
         if (symbolId && canonicalSymbol->type()->isFunctionType()) {