linux-kernel - Re: ftdi_sio BUG: NULL pointer dereference

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Date:	Mon, 02 Jun 2014 11:16:11 -0400
From:	Mike Remski <mremski@...ualink.net>
To:	Johan Hovold <jhovold@...il.com>
CC:	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: ftdi_sio BUG: NULL pointer dereference

Thanks Johan, that's why I looked at the cross references for ftdi_sio.c 
over on
http://lxr.free-electrons.com/source/drivers/usb/serial/ftdi_sio.c, 
latest version it's showing is 3.14.  It appears that the ftdi_sio code 
is largely the same as in 2.6.32, particularly in the 
ftdi_set_max_packet_size() function.

I'm trying to verify if the "number of endpoints is 0" is a valid 
situation.

Just a typical day of "fun with kernels and devices".

On 06/02/2014 10:33 AM, Johan Hovold wrote:
> On Mon, Jun 02, 2014 at 10:25:39AM -0400, Mike Remski wrote:
>> Please CC me as not subscribed to list.
>> Third party device, with FTDI chip on it.  Get this when plugging device
>> in.  Discovered in kernel 2.6.32
> Wow, that kernel is ancient. Please upgrade to a more recent kernel such
> as v3.14.5, or you need to get support from whatever vendor is forcing
> you to use such an old kernel.
>
> Good luck,
> Johan

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