linux-kernel - Re: [PATCH] Fix hiddev's use of usb_find

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Message-ID: <AANLkTikQsu4qo=nkcr2N=_GLmtCgh8wmoRcZFaUJbwAs@mail.gmail.com>
Date:	Mon, 13 Sep 2010 13:38:57 +0200
From:	Guillaume Chazarain <guichaz@...il.com>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	Arnd Bergmann <arnd@...db.de>, Greg Kroah-Hartman <gregkh@...e.de>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Fix hiddev's use of usb_find_interface

On Mon, Sep 13, 2010 at 1:28 PM, Jiri Kosina <jkosina@...e.cz> wrote:
> Yeah -- Guillaume, I think that you are actually seeing symptoms of
> intfdata being bogus. Could you please try with any kernel with commit
> 9c9e54a8df0be48 ("HID: hiddev: fix memory corruption due to invalid
> intfdata") applied (which is the one Arnd is talking about) and report
> back whether the problem is fixed by it?

I also saw the problem with 2.6.36-rc3. My problem is with
usb_find_interface(&hiddev_driver) not finding anything and
9c9e54a8df0be48aa359744f412377cc55c3b7d2 did not change this line.

In its current state I don't understand how hiddev_open() can possibly
work. I see people reporting suspend issues and stack traces in dmesg
but nobody reporting the driver being non-functioning, which is what
I'm doing here.

Thanks.

-- 
Guillaume
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