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The interrupt is enabled before the handler is set. Even this bug did not appear, it is potentially dangerous as it can lead to a NULL pointer dereference. Fix the error by enabling the interrupt after clockevents_config_and_register() is called. Cc: stable@vger.kernel.org Signed-off-by: Yongbae Park <yongbae2@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>