From dafac529a683786157db399d71c62363a7aadc06 Mon Sep 17 00:00:00 2001
From: Ziye Yang <ziye.yang@intel.com>
Date: Thu, 8 Sep 2016 15:35:04 +0800
Subject: [PATCH] nvmf: fix bdev null pointer issue in
 spdk_nvmf_parse_subsystem

Need to check bdev != NULL, otherwise there will be a segment
fault later

Change-Id: I8aa74e7716decc3166f9f2abbbb0c8ff73816f84
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
---
 app/nvmf_tgt/conf.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/app/nvmf_tgt/conf.c b/app/nvmf_tgt/conf.c
index 903bd927f..6920c8dab 100644
--- a/app/nvmf_tgt/conf.c
+++ b/app/nvmf_tgt/conf.c
@@ -507,7 +507,14 @@ spdk_nvmf_parse_subsystem(struct spdk_conf_section *sp)
 				nvmf_delete_subsystem(subsystem);
 				return -1;
 			}
+
 			bdev = spdk_bdev_get_by_name(namespace);
+			if (!bdev) {
+				SPDK_ERRLOG("bdev is NULL\n");
+				nvmf_delete_subsystem(subsystem);
+				return -1;
+			}
+
 			if (spdk_nvmf_subsystem_add_ns(subsystem, bdev)) {
 				nvmf_delete_subsystem(subsystem);
 				return -1;