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Commita60fc3294a("ptp: rework ptp_clock_unregister() to disable events") added a call to ptp_disable_all_events() which changes the configuration of pins if they support EXTTS events. In ptp_ocp_detach() pins resources are freed before ptp_clock_unregister() and it leads to use-after-free during driver removal. Fix it by changing the order of free/unregister calls. To avoid irq handler running on the other core while ptp device unregistering, call synchronize_irq() after HW is configured to stop producing irqs and no irqs are in-flight. Fixes:a60fc3294a("ptp: rework ptp_clock_unregister() to disable events") Signed-off-by: Vadim Fedorenko <vadim.fedorenko@linux.dev> Link: https://patch.msgid.link/20260608155952.240304-1-vadim.fedorenko@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org>