From 64e5387bff8ae2e1f01f00775ef724d1c0cf4c30 Mon Sep 17 00:00:00 2001
From: Richard Aas <richard@db.org>
Date: Mon, 29 Jun 2015 06:58:05 +0000
Subject: [PATCH] mem: add comment

---
 src/mem/mem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/mem/mem.c b/src/mem/mem.c
index 1fbf270..9130701 100644
--- a/src/mem/mem.c
+++ b/src/mem/mem.c
@@ -282,6 +282,7 @@ void *mem_deref(void *data)
 	if (m->dh)
 		m->dh(data);
 
+	/* NOTE: check if the destructor called mem_ref() */
 	if (m->nrefs > 0)
 		return NULL;