linux-kernel - Re: [PATCH v4 4/4] serial: 8250: Add preferred console in serial8250_isa_init

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Message-ID: <20231207072341.GU5169@atomide.com>
Date:   Thu, 7 Dec 2023 09:23:41 +0200
From:   Tony Lindgren <tony@...mide.com>
To:     Andy Shevchenko <andriy.shevchenko@...el.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Petr Mladek <pmladek@...e.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        John Ogness <john.ogness@...utronix.de>,
        Sergey Senozhatsky <senozhatsky@...omium.org>,
        "David S . Miller" <davem@...emloft.net>,
        Dhruva Gole <d-gole@...com>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
        Johan Hovold <johan@...nel.org>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Vignesh Raghavendra <vigneshr@...com>,
        linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org
Subject: Re: [PATCH v4 4/4] serial: 8250: Add preferred console in
 serial8250_isa_init_ports()

* Andy Shevchenko <andriy.shevchenko@...el.com> [231205 16:08]:
> On Tue, Dec 05, 2023 at 09:32:36AM +0200, Tony Lindgren wrote:
> > +	name = kasprintf(GFP_KERNEL, "%s%i", serial8250_reg.dev_name, idx);
> 
> No error check?

Oops

> > +	ret = add_preferred_console_match(name, serial8250_reg.dev_name, idx);
> > +	if (!ret || ret == -ENOENT)
> > +		return;
> 
> 	ret = serial_base_add_one_prefcon(...);
> 
> ?

Yup that should work even before struct device. Will fix the other
places too you noticed.

Thanks,

Tony