[cfe-commits] r41848 - /cfe/trunk/Analysis/DeadStores.cpp

[Ted Kremenek]

Author: kremenek
Date: Tue Sep 11 12:00:40 2007
New Revision: 41848

URL: http://llvm.org/viewvc/llvm-project?rev=41848&view=rev
Log:
Fixed potential NULL dereference when iterating over a chain of Decls.

Modified:
    cfe/trunk/Analysis/DeadStores.cpp

Modified: cfe/trunk/Analysis/DeadStores.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/Analysis/DeadStores.cpp?rev=41848&r1=41847&r2=41848&view=diff

==============================================================================
--- cfe/trunk/Analysis/DeadStores.cpp (original)
+++ cfe/trunk/Analysis/DeadStores.cpp Tue Sep 11 12:00:40 2007
@@ -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();