diff --git a/kernel/iec_listener.c b/kernel/iec_listener.c
index 7e25d49..1e8f0bb 100644
--- a/kernel/iec_listener.c
+++ b/kernel/iec_listener.c
@@ -286,6 +286,10 @@ static void run_state_machine(void)
 		bool eoi;
 		enum iec_rx rc;
 
+		if (kthread_should_stop()) {
+			iec_data_release();
+			return;
+		}
 		if (db_reset_asserted())
 			goto reset;
 
@@ -313,6 +317,10 @@ static void run_state_machine(void)
 		/* LISTENER: data phase */
 		emit_record(IEC_KIND_EVENT, IEC_EV_ATN_RELEASED, IEC_FLAG_ADDRESSED);
 		for (;;) {
+			if (kthread_should_stop()) {
+				iec_data_release();
+				return;
+			}
 			if (db_reset_asserted())
 				goto reset;
 			if (db_atn_asserted()) {