linux-kernel - Re: [PATCH v2 2/3] USB: serial: make minor allocation dynamic

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Message-ID: <20130607100047.GM2566@localhost>
Date:	Fri, 7 Jun 2013 12:00:47 +0200
From:	Johan Hovold <jhovold@...il.com>
To:	Greg KH <gregkh@...uxfoundation.org>
Cc:	Tobias Winter <tobias@...uxdingsda.de>,
	Bjørn Mork <bjorn@...k.no>,
	Rob Landley <rob@...dley.net>,
	Johan Hovold <jhovold@...il.com>, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/3] USB: serial: make minor allocation dynamic

On Thu, Jun 06, 2013 at 10:31:21AM -0700, Greg KH wrote:
> From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

> @@ -1040,11 +1044,10 @@ static int usb_serial_probe(struct usb_i
>  	 */
>  	serial->disconnected = 1;
>  
> -	if (get_free_serial(serial, num_ports, &minor) == NULL) {
> +	if (get_free_serial(serial, num_ports)) {
>  		dev_err(ddev, "No more free serial devices\n");
>  		goto probe_error;
>  	}
> -	serial->minor = minor;

This gives a warning as minor is no longer initialised, but is still
used to initialise the console a bit further down.

	usb_serial_console_init(minor);

Should probably just drop minor, and use serial->port[0]->minor instead.

Thanks,
Johan
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