linux-kernel - Re: [PATCH] HID: i2c-hid: Prevent sending reports from racing with device reset

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Date:	Wed, 30 Dec 2015 23:57:09 +0100 (CET)
From:	Jiri Kosina <jikos@...nel.org>
To:	Mika Westerberg <mika.westerberg@...ux.intel.com>
cc:	Benjamin Tissoires <benjamin.tissoires@...hat.com>,
	Nish Aravamudan <nish.aravamudan@...il.com>,
	Andrew Duggan <aduggan@...aptics.com>,
	Gabriele Mazzotta <gabriele.mzt@...il.com>,
	Seth Forshee <seth.forshee@...onical.com>,
	Dan Carpenter <dan.carpenter@...cle.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] HID: i2c-hid: Prevent sending reports from racing with
 device reset

On Mon, 21 Dec 2015, Mika Westerberg wrote:

> When an i2c-hid device is resumed from system sleep the driver resets
> the device to be sure it is in known state. The device is expected to
> issue an interrupt when reset is complete.
[ ... snip ... ]
> Prevent sending of feature/output reports while the device is being
> reset by adding a mutex which is held during that time.

Thanks Mika. Applied to for-4.4/upstream-fixes.

-- 
Jiri Kosina
SUSE Labs

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