Re: [PATCH v16 00/12] input: cyapa: instruction of cyapa patches

From: Dmitry Torokhov
Date: Sat Dec 20 2014 - 02:32:09 EST


On Fri, Dec 19, 2014 at 11:15:33PM -0800, Jeremiah Mahler wrote:
> Dudley,
>
> On Thu, Dec 18, 2014 at 06:00:44PM +0800, Dudley Du wrote:
> > V16 patches have below updates, details of other updates see history list:
> [...]
>
> This version has problems. I am getting an oops (below) and then things
> quit working and usually my machine hangs.
>
> [ 2.388284] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card1/input10
> [ 2.412938] FS-Cache: Netfs 'nfs' registered for caching
> [ 2.427645] [drm] Initialized i915 1.6.0 20141121 for 0000:00:02.0 on minor 0
> [ 2.428320] __add_probed_i2c_device failed to register device 1-4a
> [ 2.428331] platform chromeos_laptop: Driver chromeos_laptop requests probe deferral
> [ 2.429126] fbcon: inteldrmfb (fb0) is primary device
> [ 2.449066] BUG: unable to handle kernel NULL pointer dereference at 0000000000000160
> [ 2.449073] IP: [<ffffffff813f7b2b>] input_mt_sync_frame+0xb/0x60

Sounds like we got an interrupts before we had a chance to initialize
input device...

Thanks.

--
Dmitry
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