From 1c8d2121ab0e9ca0d8a8fccdd85da1072ef30815 Mon Sep 17 00:00:00 2001
From: Sergei Golubchik <serg@mariadb.org>
Date: Thu, 2 Mar 2017 06:53:07 +0100
Subject: [PATCH] don't do vio_description(NULL)

this fixes the crash of innodb.innodb-blob --ps-protocol
---
 sql-common/client.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sql-common/client.c b/sql-common/client.c
index 0430946b2ff..86c7dea5a58 100644
--- a/sql-common/client.c
+++ b/sql-common/client.c
@@ -583,7 +583,7 @@ restart:
   if (len == packet_error || len == 0)
   {
     DBUG_PRINT("error",("Wrong connection or packet. fd: %s  len: %lu",
-			vio_description(net->vio),len));
+			net->vio ? vio_description(net->vio) : NULL, len));
 #ifdef MYSQL_SERVER
     if (net->vio && (net->last_errno == ER_NET_READ_INTERRUPTED))
       return (packet_error);