commit c0c3d7315afb5ae8b857dce985cb7e05460f8cec
author Ted Kremenek <kremenek@apple.com> Tue Sep 11 17:00:40 2007 +0000
committer Ted Kremenek <kremenek@apple.com> Tue Sep 11 17:00:40 2007 +0000
tree bfba23c5a4bbc4bf73fa2627806f1601d4338aa9
parent 61ce98c13c4e13f2f399533cac2f0c7469c4aea7

Fixed potential NULL dereference when iterating over a chain of Decls.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@41848 91177308-0d34-0410-b5e6-96231b3b80d8

Analysis/DeadStores.cpp

diff --git a/Analysis/DeadStores.cpp b/Analysis/DeadStores.cpp
index a9a42a8..e547989 100644
--- a/Analysis/DeadStores.cpp
+++ b/Analysis/DeadStores.cpp
@@ -50,7 +50,7 @@
       // Iterate through the decls.  Warn if any of them (which have
       // initializers) are not live.
       for (VarDecl* V = cast<VarDecl>(DS->getDecl()); V != NULL ; 
-                    V = cast<VarDecl>(V->getNextDeclarator()))
+                    V = cast_or_null<VarDecl>(V->getNextDeclarator()))
         if (Expr* E = V->getInit())
           if (!L.isLive(Live,V)) {
             SourceRange R = E->getSourceRange();