From d3fbd866576e393a0eef81ee890e72c6558c4dbf Mon Sep 17 00:00:00 2001
From: ziggurat29 <dev@ziggurat29.com>
Date: Wed, 27 Apr 2016 19:33:45 -0500
Subject: [PATCH] bug in smart.c; return code of smart_scan not checked, can
 cause success result in failure case, leading to 'dev' pointer being invalid.

---
 drivers/mtd/smart.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/smart.c b/drivers/mtd/smart.c
index cb188c1854..50804cc3ab 100644
--- a/drivers/mtd/smart.c
+++ b/drivers/mtd/smart.c
@@ -5433,7 +5433,12 @@ int smart_initialize(int minor, FAR struct mtd_dev_s *mtd, FAR const char *partn
 
       /* Do a scan of the device */
 
-      smart_scan(dev);
+      ret = smart_scan(dev);
+      if (ret < 0)
+        {
+          fdbg("smart_scan failed: %d\n", -ret);
+          goto errout;
+        }
     }
 
 #ifdef CONFIG_SMART_DEV_LOOP