When generating error node, check to see if we already cached out.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97115 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Checker/UnixAPIChecker.cpp b/lib/Checker/UnixAPIChecker.cpp
index b80f7849109935a8667f327359cf333a4f2652db..7ff817ae7677c6bd2737041c73363612f6dc83b1 100644 (file)
--- a/lib/Checker/UnixAPIChecker.cpp
+++ b/lib/Checker/UnixAPIChecker.cpp
@@ -98,6 +98,9 @@ static void CheckOpen(CheckerContext &C, const CallExpr *CE, BugType *&BT) {
 
   if (CE->getNumArgs() < 3) {
     ExplodedNode *N = C.GenerateSink(trueState);
+    if (!N)
+      return;
+
     EnhancedBugReport *report =
       new EnhancedBugReport(*BT,
                             "Call to 'open' requires a third argument when "