From e01a3f1c05268065f3d28ace23abf758b969cf57 Mon Sep 17 00:00:00 2001
From: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Date: Sun, 13 Jun 2021 18:37:02 +0800
Subject: [PATCH] nvmf: check return value of strdup in
 spdk_nvmf_subsystem_disconnect_host()

In spdk_nvmf_subsystem_disconnect_host(), we should check
whether strdup() return NULL.

Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Change-Id: I29cb6b2499ecd2a2367001c0d21ac95da4e10e20
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8304
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
---
 lib/nvmf/subsystem.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/nvmf/subsystem.c b/lib/nvmf/subsystem.c
index 0034c76145..542fd32a2e 100644
--- a/lib/nvmf/subsystem.c
+++ b/lib/nvmf/subsystem.c
@@ -848,8 +848,13 @@ spdk_nvmf_subsystem_disconnect_host(struct spdk_nvmf_subsystem *subsystem,
 		return -ENOMEM;
 	}
 
-	ctx->subsystem = subsystem;
 	ctx->hostnqn = strdup(hostnqn);
+	if (ctx->hostnqn == NULL) {
+		free(ctx);
+		return -ENOMEM;
+	}
+
+	ctx->subsystem = subsystem;
 	ctx->cb_fn = cb_fn;
 	ctx->cb_arg = cb_arg;