10125 smatch fixes for cmd-inet

@@ -20,11 +20,11 @@
  */
 
 /*
  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2017 Nexenta Systems, Inc.
- * Copyright 2017 Joyent, Inc.
+ * Copyright (c) 2018, Joyent, Inc.
  * Copyright 2017 Gary Mills
  * Copyright (c) 2016, Chris Fraire <cfraire@me.com>.
  */
 
 #include <arpa/inet.h>

@@ -1634,11 +1634,10 @@
         if (status != IPADM_SUCCESS)
                 return (ret);
 
         if (if_info->ifi_cflags & IFIF_L3PROTECT)
                 ret = _B_TRUE;
-        if (if_info)
                 ipadm_free_if_info(if_info);
         return (ret);
 }
 
 static boolean_t