Re: [PATCH V2 1/2] driver core: Add ability to delete device links of unregistered devices

From: Rafael J. Wysocki
Date: Fri Jul 09 2021 - 07:19:55 EST


On Fri, Jul 9, 2021 at 11:55 AM Greg Kroah-Hartman
<gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
>
> On Fri, Jul 09, 2021 at 09:43:40AM +0300, Adrian Hunter wrote:
> > Managed device links are deleted by device_del(). However it is possible to
> > add a device link to a consumer before device_add(), and then discover an
> > error prevents the device from being used. In that case normally references
> > to the device would be dropped and the device would be deleted. However the
> > device link holds a reference to the device, so the device link and device
> > remain indefinitely.
>
> Why are you not just manually removing the link you just created? You
> manually added it, you know something failed so you need to clean up, so
> why not clean this up too?

His changes are needed to do just that.