Request "HID: usbhid: fix recursive deadlock" added to stable

Request "HID: usbhid: fix recursive deadlock" added to stable

[Jason Gerecke]

This is to request that commit
e470127e9606b1fa151c4184243e61296d1e0c0f be cherry-picked into the
stable trees for Linux 3.17 and newer.

This commit fixes a deadlock which occurs when bringing a pen into
proximity of the most recent generation of "Intuos" tablets
(056a:033b, 056a:033c, 056a:033d, 056a:033d). The deadlock may be
triggered on the stock 4.4 kernel, or any kernel dating back to 3.17
if the backported "input-wacom" drivers are used. The cherry-picked
commit has been tested successfully against what appear to be the
currently-active trees: 3.18, 4.1, and 4.4.

Jason
---
Now instead of four in the eights place /
you’ve got three, ‘Cause you added one  /
(That is to say, eight) to the two,     /
But you can’t take seven from three,    /
So you look at the sixty-fours....

Re: Request "HID: usbhid: fix recursive deadlock" added to stable

[Jiri Kosina]

On Wed, 27 Jan 2016, Jason Gerecke wrote:

> This is to request that commit
> e470127e9606b1fa151c4184243e61296d1e0c0f be cherry-picked into the
> stable trees for Linux 3.17 and newer.

Best course of action here is to send backported (and tested) commit to 
stable@vger as a regular patch, with first line (before the actual patch 
metadata) referencing the commit hash in Linus' tree.

Thanks,

-- 
Jiri Kosina
SUSE Labs

Re: Request "HID: usbhid: fix recursive deadlock" added to stable

[Luis Henriques]

On Wed, Jan 27, 2016 at 06:19:35PM -0800, Jason Gerecke wrote:
> This is to request that commit
> e470127e9606b1fa151c4184243e61296d1e0c0f be cherry-picked into the
> stable trees for Linux 3.17 and newer.
> 
> This commit fixes a deadlock which occurs when bringing a pen into
> proximity of the most recent generation of "Intuos" tablets
> (056a:033b, 056a:033c, 056a:033d, 056a:033d). The deadlock may be
> triggered on the stock 4.4 kernel, or any kernel dating back to 3.17
> if the backported "input-wacom" drivers are used. The cherry-picked
> commit has been tested successfully against what appear to be the
> currently-active trees: 3.18, 4.1, and 4.4.
>

Thanks, I'm queuing it for the 3.16 kernel as well.

Cheers,
--
Luís


> Jason
> ---
> Now instead of four in the eights place /
> you’ve got three, ‘Cause you added one  /
> (That is to say, eight) to the two,     /
> But you can’t take seven from three,    /
> So you look at the sixty-fours....
> --
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