Re: [PATCH RFC 0/2] driver core: Add ability to delete device links of unregistered devices

From: Saravana Kannan
Date: Wed Jul 07 2021 - 13:42:29 EST


On Wed, Jul 7, 2021 at 10:40 AM Greg Kroah-Hartman
<gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
>
> On Wed, Jul 07, 2021 at 08:29:46PM +0300, Adrian Hunter wrote:
> > Hi
> >
> > There is an issue with the SCSI UFS driver when the optional
> > BOOT well-known LUN fails to probe, which is not a fatal error.
> > The issue is that the device and its "managed" device link do not
> > then get deleted. The device because the device link has a
> > reference to it. The device link because it can only be deleted
> > by device_del(), but device_add() was never called, so device_del()
> > never will be either.
>
> How was a link created for something that never had device_add() called
> on it? Who is doing that?
>

Greg responded as I was typing :)

Nak for the series. I don't like mixing and matching the control of
managed device links like this.

Can I get more details please. How is the device link added in the first place?

-Saravana