Re: [PATCH v3 0/3] drivers: base: Add tests showing devm handling inconsistencies

[Greg Kroah-Hartman]

On Mon, Jul 31, 2023 at 08:34:03AM +0200, Maxime Ripard wrote:
> On Thu, Jul 20, 2023 at 02:45:06PM +0200, Maxime Ripard wrote:
> > Hi,
> > 
> > This follows the discussion here:
> > https://lore.kernel.org/linux-kselftest/20230324123157.bbwvfq4gsxnlnfwb@houat/
> > 
> > This shows a couple of inconsistencies with regard to how device-managed
> > resources are cleaned up. Basically, devm resources will only be cleaned up
> > if the device is attached to a bus and bound to a driver. Failing any of
> > these cases, a call to device_unregister will not end up in the devm
> > resources being released.
> > 
> > We had to work around it in DRM to provide helpers to create a device for
> > kunit tests, but the current discussion around creating similar, generic,
> > helpers for kunit resumed interest in fixing this.
> > 
> > This can be tested using the command:
> > ./tools/testing/kunit/kunit.py run --kunitconfig=drivers/base/test/
> > 
> > I added the fix David suggested back in that discussion which does fix
> > the tests. The SoB is missing, since David didn't provide it back then.
> > 
> > Let me know what you think,
> > Maxime
> > 
> > Signed-off-by: Maxime Ripard <mripard@xxxxxxxxxx>
> 
> Ping?

It's in my review queue, still trying to catch up...