From: Saleem Abdulrasool <compnerd@compnerd.org>
Date: Wed, 19 Feb 2014 02:56:55 +0000 (+0000)
Subject: CIndex: initialise TU
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=720a8471e8da74807971b52f3f239950df069805;p=clang

CIndex: initialise TU

TU is not guaranteed to be initialised in all cases.  In particular if CIdx or
ast_filename is NULL (or if &TU is NULL), then clang_createTranslationUnit2 will
not initialise the out parameter out_TU.  This is followed by an assertion check
which may perform a branch based on unitialised memory.

Caught by scan-build.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@201628 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/tools/libclang/CIndex.cpp b/tools/libclang/CIndex.cpp
index e862889f26..c5f41a8a74 100644
--- a/tools/libclang/CIndex.cpp
+++ b/tools/libclang/CIndex.cpp
@@ -2612,7 +2612,7 @@ void clang_toggleCrashRecovery(unsigned isEnabled) {
 
 CXTranslationUnit clang_createTranslationUnit(CXIndex CIdx,
                                               const char *ast_filename) {
-  CXTranslationUnit TU;
+  CXTranslationUnit TU = NULL;
   enum CXErrorCode Result =
       clang_createTranslationUnit2(CIdx, ast_filename, &TU);
   (void)Result;