linux-kernel - Re: [PATCH 0/2] Move uart_register_driver call to device probe for pl010 and sh-sci

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Message-ID: <20170324164202.GI7909@n2100.armlinux.org.uk>
Date:   Fri, 24 Mar 2017 16:42:02 +0000
From:   Russell King - ARM Linux <linux@...linux.org.uk>
To:     Sjoerd Simons <sjoerd.simons@...labora.co.uk>
Cc:     linux-serial@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org, Jiri Slaby <jslaby@...e.com>
Subject: Re: [PATCH 0/2] Move uart_register_driver call to device probe for
 pl010 and sh-sci

On Fri, Mar 24, 2017 at 05:26:32PM +0100, Sjoerd Simons wrote:
> When testing on a Renesas board with the PL010 serial driver enabled
> serial output broke. Turns out the minor device numbers for both
> drivers happen to overlap, causing whichever driver happened to be the
> second one to register to fail.

How the **** has the SH serial driver ended up with overlapping device
numbers?

What happened to our maintained list of allocated major/minor device
numbers, which is supposed to stop crap like this happening?

-- 
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