Hi Linus and Bartosz,
On Tue, 20 Jun 2023 at 22:11, Andy Shevchenko andriy.shevchenko@linux.intel.com wrote:
On Tue, Apr 11, 2023 at 10:57:28AM +0200, Linus Walleij wrote:
On Mon, Apr 10, 2023 at 11:16 AM Naresh Kamboju naresh.kamboju@linaro.org wrote:
...
Add a pr_info() devm_gpio_chip_release() in drivers/gpio/gpiolib-devres.c and see if the callback is even called. I think this could be the problem: if that isn't cleaned up, there will be dangling references.
Side note: Since we have devres tracepoints, your patch seems an overkill :-) Just enable devres tracepoints and filter out by the function name. I believe that should work.
Since I have been tracking open issues on the stable-rc kernel, The reported problem on stable-rc linux.6.3.y has been solved on the stable-rc linux.6.6.y branch.
Thanks for fixing this reported issue.
Upstream links about this fix and discussion,
Commit daecca4b8433 gpiolib: Do not alter GPIO chip fwnode member
[1] https://lore.kernel.org/linux-gpio/20230703142308.5772-4-andriy.shevchenko@l... [2] https://lore.kernel.org/linux-gpio/CAMRc=MfFEBSeJ78NO7XeuzAMJ0KezEPAYWsWnFXX... [3] https://lore.kernel.org/linux-gpio/CA+G9fYv94gx8+-JMzbmQaue3q3y6QdBmsGUCdD-2...
-- With Best Regards, Andy Shevchenko