Re: [PATCH v2 09/29] media: mc: Do not call cdev_device_del() if cdev_device_add() fails

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Hi Laurent,

On Wed, Feb 07, 2024 at 11:57:25AM +0200, Laurent Pinchart wrote:
> Hi Sakari,
> 
> Thank you for the patch.
> 
> On Wed, Dec 20, 2023 at 12:36:53PM +0200, Sakari Ailus wrote:
> > cdev_device_del() is the right function to remove a device when
> > cdev_device_add() succeeds. If it does not, however, put_device() needs to
> > be used instead. Fix this.
> 
> Where's the put_device() call ?

Seems to have gone missing at some point.

It was added though by "media: mc: Split initialising and adding media
devnode" a little later as this got moved to mc-device.c, so fixing this
here makes difference until that patch.

I'll address this for v3.

> 
> > Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
> > Acked-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
> > ---
> >  drivers/media/mc/mc-devnode.c | 1 -
> >  1 file changed, 1 deletion(-)
> > 
> > diff --git a/drivers/media/mc/mc-devnode.c b/drivers/media/mc/mc-devnode.c
> > index ce93ab9be676..7e22938dfd81 100644
> > --- a/drivers/media/mc/mc-devnode.c
> > +++ b/drivers/media/mc/mc-devnode.c
> > @@ -254,7 +254,6 @@ int __must_check media_devnode_register(struct media_devnode *devnode,
> >  
> >  cdev_add_error:
> >  	mutex_lock(&media_devnode_lock);
> > -	cdev_device_del(&devnode->cdev, &devnode->dev);
> >  	clear_bit(devnode->minor, media_devnode_nums);
> >  	mutex_unlock(&media_devnode_lock);
> >  
> 

-- 
Regards,

Sakari Ailus




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