linux-kernel - Re: [PATCH 1/1] USBHID: correct start/stop cycle

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Date:	Sun, 02 Nov 2008 00:07:20 +0100
From:	Jiri Slaby <jirislaby@...il.com>
To:	Jiri Kosina <jkosina@...e.cz>
CC:	Jeroen Roovers <jer@...too.org>, Helge Deller <deller@....de>,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] USBHID: correct start/stop cycle

On 11/02/2008 12:02 AM, Jiri Kosina wrote:
> On Sat, 1 Nov 2008, Jiri Slaby wrote:
> 
>> `stop' left out usbhid->urb* pointers and so the next `start' thought
>> it needs to allocate nothing and used the memory pointers previously
>> pointed to. This led to memory corruption and device malfunction.
[...]
> could you please verify whether this patch fixes the corruption you were 
> experiencing?

btw. this is not expected to fix that, but if it does, the better ;).

This fixes
echo DEVICE > /sys/bus/hid/drivers/DRIVER/unbind
echo DEVICE > /sys/bus/hid/drivers/DRIVER/bind
failures.

But maybe parisc does something differently than x86 in bus handling so that it
triggers...
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