Re: [Bug][5.17-rc0] Between commits daadb3bd0e8d and 455e73a07f6e, the kernel stops loading on my devices.

[Len Brown]

Tested-by: Len Brown <len.brown@intelcom>

The typec_link_ports crash goes away w/ the 2nd patch.

https://bugzilla.kernel.org/show_bug.cgi?id=215529

On Fri, Jan 21, 2022 at 4:33 PM John Stultz <john.stultz@xxxxxxxxxx> wrote:
>
> On Thu, Jan 20, 2022 at 3:27 AM Heikki Krogerus
> <heikki.krogerus@xxxxxxxxxxxxxxx> wrote:
> > On Tue, Jan 18, 2022 at 03:12:10PM +0200, Heikki Krogerus wrote:
> > > I can reproduce this one by simply not creating the component list in
> > > the code. That function - component_master_add_with_match() - can't
> > > handle situation where the list is empty. I'll prepare the fix.
> >
> > I'm again attaching the proposed fix, just to see if it also gets
> > corrupted. Can you test does it fix this issue?
> > You need to apply it on top of the previous one.
>
> We've been hitting the null pointer crash from
> component_master_add_with_match() regression as well on the hikey960
> board.
>
> The patch you attached resolves the issue. It would be great to see it
> merged upstream soon!
>
> Tested-by: John Stultz <john.stultz@xxxxxxxxxx>
>
> thanks
> -john



-- 
Len Brown, Intel Open Source Technology Center