linux-kernel - Re: [PATCH] cx23885: restore flushes of cx23885

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Message-ID: <4D5ADB72.2050006@redhat.com>
Date:	Tue, 15 Feb 2011 18:00:50 -0200
From:	Mauro Carvalho Chehab <mchehab@...hat.com>
To:	Tejun Heo <tj@...nel.org>
CC:	Andy Walls <awalls@...metrocast.net>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
	stoth@...nellabs.com
Subject: Re: [PATCH] cx23885: restore flushes of cx23885_dev work items

Em 15-02-2011 07:20, Tejun Heo escreveu:
> Commit 8c71778c (media/video: don't use flush_scheduled_work())
> dropped flush_scheduled_work() from cx23885_input_ir_stop()
> incorrectly assuming that it didn't use any work item; however,
> cx23885_dev makes use of three work items - cx25840_work and
> ir_{r|t}x_work.
> 
> Make cx23885_input_ir_stop() sync flush all three work items before
> returning.
> 
> Signed-off-by: Tejun Heo <tj@...nel.org>
> Reported-by: Andy Walls <awalls@...metrocast.net>
> Reviewed-by: Andy Walls <awalls@...metrocast.net>
> Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>
> Cc: Mauro Carvalho Chehab <mchehab@...hat.com>

Acked-by: Mauro Carvalho Chehab <mchehab@...hat.com>

> ---
>  drivers/media/video/cx23885/cx23885-input.c |    3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/media/video/cx23885/cx23885-input.c b/drivers/media/video/cx23885/cx23885-input.c
> index 199b996..e27cedb 100644
> --- a/drivers/media/video/cx23885/cx23885-input.c
> +++ b/drivers/media/video/cx23885/cx23885-input.c
> @@ -229,6 +229,9 @@ static void cx23885_input_ir_stop(struct cx23885_dev *dev)
>  		v4l2_subdev_call(dev->sd_ir, ir, rx_s_parameters, &params);
>  		v4l2_subdev_call(dev->sd_ir, ir, rx_g_parameters, &params);
>  	}
> +	flush_work_sync(&dev->cx25840_work);
> +	flush_work_sync(&dev->ir_rx_work);
> +	flush_work_sync(&dev->ir_tx_work);
>  }
>  
>  static void cx23885_input_ir_close(struct rc_dev *rc)

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