Re: [PATCH] spi: fix use-after-free on managed registration failure

[Andy Shevchenko]

On Fri, Mar 27, 2026 at 09:47:11AM +0100, Johan Hovold wrote:
> On Fri, Mar 27, 2026 at 09:20:08AM +0200, Andy Shevchenko wrote:
> > On Thu, Mar 26, 2026 at 07:25:14PM +0000, Mark Brown wrote:
> > > On Thu, Mar 26, 2026 at 09:19:22PM +0200, Andy Shevchenko wrote:
> > > > On Thu, Mar 26, 2026 at 11:35:56AM +0200, Andy Shevchenko wrote:
> > > > > On Wed, Mar 25, 2026 at 03:53:19PM +0100, Johan Hovold wrote:

...

> > > > > > An alternative would be a partial revert of the offending commit, but
> > > > > > it is better to handle this explicitly until the API has been fixed
> > > > > > (e.g. see 5e844cc37a5c ("spi: Introduce device-managed SPI controller
> > > > > > allocation")).
> > > 
> > > > > Acked-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> > > 
> > > > Seems Mark dropped the original change, so this is not needed.
> > > 
> > > Not intentionally?
> > 
> > I don't know, but it allows to start from fixing the users to avoid regressions.
> > I'm fine with the current state of affairs.
> 
> The offending commit is already in mainline and hasn't been reverted in
> Mark's tree. This fix has been merged there though so nothing more is
> needed for now.

Ah, I only looked into Linux Next (without looking into the base, which is
v7.0-rc5 as of today). Thanks for clarification.

-- 
With Best Regards,
Andy Shevchenko