From 0bef3b715bc4c4030efad8eff36a77ec816235de Mon Sep 17 00:00:00 2001
From: Amin Ben Ramdhane <amin.benramdhane@pivasoftware.com>
Date: Tue, 3 Dec 2019 11:30:18 +0100
Subject: [PATCH] check the pointer before freeded it

---
 dmbbf.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dmbbf.h b/dmbbf.h
index 76fc3031..d41fb385 100644
--- a/dmbbf.h
+++ b/dmbbf.h
@@ -47,7 +47,7 @@
 #endif
 
 #ifndef FREE
-#define FREE(x) do { free(x); x = NULL; } while (0)
+#define FREE(x) do { if(x) {free(x); x = NULL;} } while (0)
 #endif
 
 extern struct dm_permession_s DMREAD;