From 02ce35189669a0894bd1b16808a886f3867b1c86 Mon Sep 17 00:00:00 2001
From: Sagi Grimberg <sagi@grimberg.me>
Date: Wed, 19 Aug 2020 03:31:57 -0700
Subject: [PATCH] fabrics: fix segfault when -t <transport> is not passed

Need to check if transport was provided before we derefernce
it.

Fixes: 9da606b4afcc ("fabrics: allow traddr to be host name for ip based transports")
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
---
 fabrics.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fabrics.c b/fabrics.c
index 73bb3752..c93b752f 100644
--- a/fabrics.c
+++ b/fabrics.c
@@ -923,7 +923,7 @@ static bool traddr_is_hostname(struct config *cfg)
 {
 	char addrstr[NVMF_TRADDR_SIZE];
 
-	if (!cfg->traddr)
+	if (!cfg->traddr || !cfg->transport)
 		return false;
 	if (strcmp(cfg->transport, "tcp") && strcmp(cfg->transport, "rdma"))
 		return false;
-- 
2.50.1