linux-kernel - Re: [PATCH 1/1] ensure we don't use bootconsoles after init has been released

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Message-ID: <20070820033143.GA4918@linux-sh.org>
Date:	Mon, 20 Aug 2007 12:31:43 +0900
From:	Paul Mundt <lethal@...ux-sh.org>
To:	Mike Frysinger <vapier.adi@...il.com>
Cc:	Robin Getz <rgetz@...ckfin.uclinux.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org,
	Gerd Hoffmann <kraxel@...hat.com>
Subject: Re: [PATCH 1/1] ensure we don't use bootconsoles after init has been released

On Sun, Aug 19, 2007 at 11:11:47PM -0400, Mike Frysinger wrote:
> On 8/19/07, Robin Getz <rgetz@...ckfin.uclinux.org> wrote:
> > +static int __init disable_boot_consoles(void)
> > +{
> > +       struct console *con;
> > +
> > +       for (con = console_drivers; con; con = con->next) {
> > +               if (con->flags & CON_BOOT) {
> > +                       printk(KERN_INFO "Turn off boot console %s%d\n",
> > +                               con->name, con->index);
> > +                       unregister_console(con);
> > +               }
> > +       }
> > +}
> 
> erp, no 'return 0;' ... that'll earn you a warning at build time and
> maybe random failures depending on the arch ...

Or better yet, complain if unregister_console() fails, and pass the
failure down.
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