Re: [PATCH] media: ov7670: remove ov7670_power_off from ov7670_remove
From: Dongliang Mu
Date: Tue Apr 26 2022 - 01:53:19 EST
On Mon, Apr 25, 2022 at 12:40 AM Laurent Pinchart
> Hi Dongliang,
> Thank you for the patch.
> On Fri, Apr 22, 2022 at 04:54:05PM +0800, Dongliang Mu wrote:
> > From: Dongliang Mu <mudongliangabcd@xxxxxxxxx>
> > In ov7670_probe, it always invokes ov7670_power_off() no matter
> > the execution is successful or failed. So we cannot invoke it
> > agiain in ov7670_remove().
> > Fix this by removing ov7670_power_off from ov7670_remove.
> > Fixes: 030f9f682e66 ("media: ov7670: control clock along with power")
> ov7670_power_off() is a no-op if power is already off. What does this
> fix ?
Yes, this is true. I just thought this is redundant, so I remove
ov7670_power_off from ov7670_remove
If current code is fine, please ignore this patch.
> > Signed-off-by: Dongliang Mu <mudongliangabcd@xxxxxxxxx>
> > ---
> > drivers/media/i2c/ov7670.c | 1 -
> > 1 file changed, 1 deletion(-)
> > diff --git a/drivers/media/i2c/ov7670.c b/drivers/media/i2c/ov7670.c
> > index 196746423116..1be2c0e5bdc1 100644
> > --- a/drivers/media/i2c/ov7670.c
> > +++ b/drivers/media/i2c/ov7670.c
> > @@ -2017,7 +2017,6 @@ static int ov7670_remove(struct i2c_client *client)
> > v4l2_async_unregister_subdev(sd);
> > v4l2_ctrl_handler_free(&info->hdl);
> > media_entity_cleanup(&info->sd.entity);
> > - ov7670_power_off(sd);
> > return 0;
> > }
> Laurent Pinchart