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3137fbd9b4
Fix riace condition between host1x_syncpt_alloc() and host1x_syncpt_put() by using kref_put_mutex() instead of kref_put() + manual mutex locking. This ensures no thread can acquire the syncpt_mutex after the refcount drops to zero but before syncpt_release acquires it. This prevents races where syncpoints could be allocated while still being cleaned up from a previous release. Remove explicit mutex locking in syncpt_release as kref_put_mutex() handles this atomically. Bug 5170956 Change-Id: I9e2348482d5c9646556576772f6b90fa7df3acd2 Signed-off-by: Mainak Sen <msen@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3369121 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>