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Date: Thu, 25 Sep 2014 15:54:05 +0200
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To: Luca Olivetti <luca@ventoso.org>, Fengguang Wu <fengguang.wu@intel.com>
CC: Mauro Carvalho Chehab <m.chehab@samsung.com>, linux-media@vger.kernel.org,
        Jet Chen <jet.chen@intel.com>, Su Tao <tao.su@intel.com>,
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Subject: Re: [media/dvb_usb_af9005] BUG: unable to handle kernel paging request
 (WAS: [media/em28xx] BUG: unable to handle kernel)
References: <20140919014124.GA8326@localhost> <541C7D9D.30908@googlemail.com> <541C826D.7060702@googlemail.com> <541C8A26.6050207@ventoso.org> <5421C187.2070407@googlemail.com> <5421E00B.2050404@ventoso.org>
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Am 23.09.2014 um 23:03 schrieb Luca Olivetti:
> El 23/09/14 20:52, Frank Schäfer ha escrit:
>
>>>> This seems to be an ancient bug, which is known at least since 5 1/2 years:
>>>> https://lkml.org/lkml/2009/2/4/350
> [...]
>>> #if defined(CONFIG_MODULE) || defined(CONFIG_DVB_USB_AF9005_REMOTE)
>> What happens, if CONFIG_MODULES is enabled, but neither module
>> af9005-remote nor any other IR module is available ?
>> Has this ever been tested ?
> I think I tested at the time and symbol_request returned NULL in that
> case, however I'm not sure and I cannot find any documentation on how
> symbol_request is supposed to work in that case.

Ok, thanks.
I assume noone wants to invest some time into this old driver and covert
it to todays kernel IR infrastructure as suggested by Antti ? :-)
Then I'm going to send a patch with the 

#if defined(CONFIG_MODULE) || defined(CONFIG_DVB_USB_AF9005_REMOTE)

approach.
That's at least better than leaving the bug unfixed.

Regards,
Frank