1 files changed, 2 insertions, 0 deletions
diff --git a/dbutil.c b/dbutil.c
index ce43933..c77386f 100644
--- a/dbutil.c
+++ b/dbutil.c
@@ -603,6 +603,8 @@ void * m_realloc(void* ptr, size_t size) {
 
 /* Clear the data, based on the method in David Wheeler's
  * "Secure Programming for Linux and Unix HOWTO" */
+/* Beware of calling this from within dbutil.c - things might get
+ * optimised away */
 void m_burn(void *data, unsigned int len) {
 	volatile char *p = data;