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diff --git a/direct/timothy_tests/quick_tests/test_yaffs_close_NULL.c b/direct/timothy_tests/quick_tests/test_yaffs_close_NULL.c
new file mode 100644
index 0000000..096f783
--- /dev/null
+++ b/direct/timothy_tests/quick_tests/test_yaffs_close_NULL.c
@@ -0,0 +1,53 @@
+/*
+ * YAFFS: Yet another FFS. A NAND-flash specific file system.
+ *
+ * Copyright (C) 2002-2010 Aleph One Ltd.
+ *   for Toby Churchill Ltd and Brightstar Engineering
+ *
+ * Created by Timothy Manning <timothy@yaffs.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/* generates a EBADF error by closing a handle twice */
+
+#include "test_yaffs_close_NULL.h"
+
+static int handle = -1;
+
+int test_yaffs_close_NULL(void)
+{
+	int output = 0;
+	int error_code = 0;
+
+
+	output = yaffs_close(NULL);
+	if (output < 0){
+		error_code = yaffs_get_error();
+		if (abs(error_code) == EBADF){
+			handle =-1;
+			return 1;
+		} else {
+			print_message("different error than expected\n",2);
+			return -1;
+		}
+	} else {
+		print_message("closed a NULL handle. (which is a bad thing)\n", 2);
+		return -1;
+	}
+
+}
+
+
+int test_yaffs_close_NULL_clean(void)
+{
+	if (handle >= 0){
+		printf("handle %d\n",handle);
+		return yaffs_close(handle);
+	} else {
+		return 1;
+	}
+}
+