Re: [PATCH] isdn/eicon: do integrity check on cmd->adapter == a->controller early

From: David Miller
Date: Thu Sep 28 2017 - 12:32:28 EST


From: Meng Xu <mengxu.gatech@xxxxxxxxx>
Date: Sun, 24 Sep 2017 11:14:41 -0400

> + /* do the integrity check early */
> + if(((diva_xdi_um_cfg_cmd_t *)data)->adapter != a->controller){
> + DBG_ERR(("A: A(%d) write, invalid controller=%d != %d",
> + ((diva_xdi_um_cfg_cmd_t *)data)->adapter, a->controller));
> +

DBG_ERR() has a trailing semicolon in it's definition, so if you add
another one when you invoke it there will be two ";;".

This whole code base is such a mess, I really think there is little
to no value in trying to make minor changes here.

So unless you are fixing some kind of exploitable hole, please drop
this.

Thank you.