Re: [PATCH] USB: serial: fix stringify operator in usb-serial-simple

From: Greg Kroah-Hartman
Date: Sun Aug 18 2013 - 15:38:58 EST


On Sun, Aug 18, 2013 at 09:29:00PM +0200, Yann Droneaud wrote:
> From: Yann Droneaud <ydroneaud@xxxxxxxxxx>
>
> usb-serial-simple uses an unknown stringify macro that make
> all drivers being named "stringify(vendor)".
>
> This can be a problem when two drivers have the same (wrong) name:
>
> kernel: usbcore: registered new interface driver usb_serial_simple
> kernel: usbserial: USB Serial support registered for stringify(vendor)
> kernel Error: Driver 'stringify(vendor)' is already registered, aborting...
> kernel: usbserial: problem -16 when registering driver stringify(vendor)
> kernel: usbserial: USB Serial deregistering driver stringify(vendor)
> kernel: usbcore: deregistering interface driver usb_serial_simple
>

Ugh, sorry about that, I thought there used to be a stringify() macro
that used to do this. Nice patch, I'll queue it up.

greg k-h
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