[PATCH] drm/bridge: lt9611uxc: Cancel only driver's work

[PATCH] drm/bridge: lt9611uxc: Cancel only driver's work

[Bjorn Andersson]

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@linaro.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);
 
-- 
2.35.1

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

[Neil Armstrong]

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@linaro.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@baylibre.com>

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

[Robert Foss]

On Tue, 7 Jun 2022 at 14:32, Neil Armstrong <narmstrong@baylibre.com> wrote:
>
> 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@linaro.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@baylibre.com>

Applied to drm-misc-next.