linux-kernel - Re: USB HID bug (was [PROBLEM] Bonding driver in linux-2.6.21-rc6-mm1)

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Message-ID: <Pine.LNX.4.64.0704280054030.7370@jikos.suse.cz>
Date:	Sat, 28 Apr 2007 00:55:21 +0200 (CEST)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Greg KH <greg@...ah.com>, "VE (HOME)" <ve@...ienne.net>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>, fubar@...ibm.com,
	Paul Walmsley <paul@...yaka.com>
Subject: Re: USB HID bug (was [PROBLEM] Bonding driver in linux-2.6.21-rc6-mm1)

On Sat, 28 Apr 2007, Jiri Kosina wrote:

> This BUG (it's in fact a warning) is this one:
>        WARN_ON(idVendor == 0);
> I now don't immediately see how this could happen - the vendor ID seems 
> to be propagated properly from hid_probe() (nothing has been changed in 
> this codepath), so this would mean that hid_probe() has been passed 
> usb_interface for which 
> le16_to_cpu(interface_to_usbdev(intf).dev->descriptor.idVendor) is equal 
> to zero ...  and this definitely shouldn't happen for any sane device 
> (could the original poster please verify with lsusb, just to be 100% 
> sure?).

BTW do I guess correctly that your keyboard is useful without problems 
after that, you only see this BUG and stacktraces in your logs, right?

Thanks,

-- 
Jiri Kosina
SUSE Labs
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