linux-kernel - RE: [PATCH 0/2] staging: comedi: das16: fix some timer sync issues

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Message-ID: <DC148C5AA1CEBA4E87973D432B1C2D882601A692@P3PWEX4MB008.ex4.secureserver.net>
Date:	Fri, 31 Oct 2014 16:21:40 +0000
From:	Hartley Sweeten <HartleyS@...ionengravers.com>
To:	Ian Abbott <abbotti@....co.uk>,
	"driverdev-devel@...uxdriverproject.org" 
	<driverdev-devel@...uxdriverproject.org>
CC:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 0/2] staging: comedi: das16: fix some timer sync issues

On Wednesday, October 29, 2014 10:35 AM, Ian Abbott wrote:
> "das16" uses a kernel timer but never removes it from the queue
> synchronously at the moment.  Patch 1 makes sure this is done before it
> is destroyed.  Patch 2 uses the comedi device's main spin-lock to ensure
> some state shared with the timer routine is updated in an SMP-safe
> manner.
>
> 1) staging: comedi: das16: deschedule timer routine on detach
> 2) staging: comedi: das16: use spin-lock when setting timer
>
>  drivers/staging/comedi/drivers/das16.c | 9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)

Reviewed-by: H Hartley Sweeten <hsweeten@...ionengravers.com>

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