linux-kernel - Re: PROBLEM: Kernel Bug on USB unplugging (Elo TouchSystems CarrollTouch 4500U)

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Message-ID: <1464682390.10800.3.camel@suse.com>
Date:	Tue, 31 May 2016 10:13:10 +0200
From:	Oliver Neukum <oneukum@...e.com>
To:	Pierre Sauter <pierre.sauter@...m.de>
Cc:	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: PROBLEM: Kernel Bug on USB unplugging (Elo TouchSystems
 CarrollTouch 4500U)

On Mon, 2016-05-30 at 18:47 +0200, Pierre Sauter wrote:
> On unplugging this USB Touchscreen, everytime I get either:
> 
> [  161.596055] BUG: unable to handle kernel NULL pointer dereference at 00000015
> [  161.596093] IP: [<c10c92b0>] get_next_timer_interrupt+0x80/0x270
> or
> [  155.892061] BUG: unable to handle kernel paging request at 30303046
> [  155.892101] IP: [<c10d13da>] get_next_timer_interrupt+0x8a/0x290
> 
> and then panic and the system is unresponsive.

Please try the attached patch.

	Regards
		Oliver


View attachment "0001-hid-elo-kill-not-flush-the-work.patch" of type "text/x-patch" (802 bytes)