Re: [PATCH] fbdev: da8xx-fb: Fix error handling in .remove()

["Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>]

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On Tue, Oct 18, 2022 at 08:08:49AM +0200, Helge Deller wrote:
> On 10/17/22 21:52, Uwe Kleine-König wrote:
> > Even in the presence of problems (here: regulator_disable() might fail),
> > it's important to unregister all resources acquired during .probe() and
> > disable the device (i.e. DMA activity) because even if .remove() returns
> > an error code, the device is removed and the .remove() callback is never
> > called again later to catch up.
> > 
> > This is a preparation for making platform remove callbacks return void.
> > 
> > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> 
> applied.

Great. If you want a Fixes: line, that's:

Fixes: 611097d5daea ("fbdev: da8xx: add support for a regulator")

(expanded Cc: a bit with the people involved there.)

Best regards
Uwe

> > ---
> >   drivers/video/fbdev/da8xx-fb.c | 3 ++-
> >   1 file changed, 2 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/video/fbdev/da8xx-fb.c b/drivers/video/fbdev/da8xx-fb.c
> > index ae76a2111c77..11922b009ed7 100644
> > --- a/drivers/video/fbdev/da8xx-fb.c
> > +++ b/drivers/video/fbdev/da8xx-fb.c
> > @@ -1076,7 +1076,8 @@ static int fb_remove(struct platform_device *dev)
> >   	if (par->lcd_supply) {
> >   		ret = regulator_disable(par->lcd_supply);
> >   		if (ret)
> > -			return ret;
> > +			dev_warn(&dev->dev, "Failed to disable regulator (%pe)\n",
> > +				 ERR_PTR(ret));
> >   	}
> > 
> >   	lcd_disable_raster(DA8XX_FRAME_WAIT);
> > 
> > base-commit: 4fe89d07dcc2804c8b562f6c7896a45643d34b2f
> 
> 
> 

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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