diff --git a/drivers/ptp/ptp_clock.c b/drivers/ptp/ptp_clock.c
index 2e481b9e8ea597858e08ab8933374fce8ccd197c..86280b7e41f3f79db793c0545c97bb0c1e36e96e 100644
--- a/drivers/ptp/ptp_clock.c
+++ b/drivers/ptp/ptp_clock.c
@@ -263,6 +263,7 @@ struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info,
 no_device:
 	mutex_destroy(&ptp->tsevq_mux);
 	mutex_destroy(&ptp->pincfg_mux);
+	ida_simple_remove(&ptp_clocks_map, index);
 no_slot:
 	kfree(ptp);
 no_memory: