bug 321065 memory leak in nsJSNPRuntime.cpp

patch=alfred.peng@sun.com
r=dbaron
sr=brendan


git-svn-id: svn://10.0.0.236/trunk@186400 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/modules/plugin/base/src/nsJSNPRuntime.cpp

@@ -1073,6 +1073,10 @@ CallNPMethod(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
     if (!JSValToNPVariant(npp, cx, argv[i], npargs + i)) {
       ThrowJSException(cx, "Error converting jsvals to NPVariants!");
 
+      if (npargs != npargs_buf) {
+        PR_Free(npargs);
+      }
+
       return JS_FALSE;
     }
   }