don't do vio_description(NULL)

vuvova · vuvova · commit 1c8d2121ab0e · 2017-03-10T18:21:23.000+01:00
this fixes the crash of innodb.innodb-blob --ps-protocol
diff --git a/sql-common/client.c b/sql-common/client.c
@@ -583,7 +583,7 @@ cli_safe_read(MYSQL *mysql)
   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);

Original file line number	Diff line number	Diff line change
`@@ -583,7 +583,7 @@ cli_safe_read(MYSQL *mysql)`
`583`	`583`	`if (len == packet_error \|\| len == 0)`
`584`	`584`	`{`
`585`	`585`	`DBUG_PRINT("error",("Wrong connection or packet. fd: %s len: %lu",`
`586`		`- vio_description(net->vio),len));`
	`586`	`+ net->vio ? vio_description(net->vio) : NULL, len));`
`587`	`587`	`#ifdef MYSQL_SERVER`
`588`	`588`	`if (net->vio && (net->last_errno == ER_NET_READ_INTERRUPTED))`
`589`	`589`	`return (packet_error);`