linux-kernel - Re: [PATCH] drm/bridge: lt9611uxc: Cancel only driver's work

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Message-ID: <3e51df22-5747-7536-257a-77d279c57254@baylibre.com>
Date:   Tue, 7 Jun 2022 14:32:31 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Andrzej Hajda <andrzej.hajda@...el.com>,
        Robert Foss <robert.foss@...aro.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH] drm/bridge: lt9611uxc: Cancel only driver's work

On 02/06/2022 01:38, Bjorn Andersson wrote:
> During device remove care needs to be taken that no work is pending
> before it removes the underlying DRM bridge etc, but this can be done on
> the specific work rather than waiting for the flush of the system-wide
> workqueue.
> 
> Fixes: bc6fa8676ebb ("drm/bridge/lontium-lt9611uxc: move HPD notification out of IRQ handler")
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> ---
>   drivers/gpu/drm/bridge/lontium-lt9611uxc.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c
> index 3d62e6bf6892..310b3b194491 100644
> --- a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c
> +++ b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c
> @@ -982,7 +982,7 @@ static int lt9611uxc_remove(struct i2c_client *client)
>   	struct lt9611uxc *lt9611uxc = i2c_get_clientdata(client);
>   
>   	disable_irq(client->irq);
> -	flush_scheduled_work();
> +	cancel_work_sync(&lt9611uxc->work);
>   	lt9611uxc_audio_exit(lt9611uxc);
>   	drm_bridge_remove(&lt9611uxc->bridge);
>   

Reviewed-by: Neil Armstrong <narmstrong@...libre.com>