Re: [PATCH 1/9] coresight: cpu-debug: Fix PM usage counter leak in debug_enable_func()

On Tue, Oct 27, 2026 at 02:55:47PM +0000, James Clark wrote:

pm_runtime_get_sync() increments the usage counter even when it fails, but the failing CPU isn't added to the rollback mask, so its reference is never dropped. Use pm_runtime_resume_and_get() which drops the reference itself on failure.

Fixes: 2227b7c74634 ("coresight: add support for CPU debug module") Reported-by: Sashiko sashiko-bot@kernel.org Closes: https://sashiko.dev/#/bug/linux-2ff60e6d-33ac-4a69-9c62-63eb482f1913 Signed-off-by: James Clark james.clark@linaro.org

This duplicates with: https://lore.kernel.org/linux-arm-kernel/20260911-b4-coresight-runtime-pm-fa...

I'd prefer to pick up that patch, as it has fixed all drivers in the CoreSight directory.

Thanks, Leo