diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 2d4e00a1e48c..d82df5b4e2db 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -1173,8 +1173,8 @@ bool ap_bus_force_rescan(void)
 	 * for the lock which means the other task has finished and
 	 * stored the result in ap_scan_bus_result.
 	 */
-	if (mutex_lock_interruptible(&ap_scan_bus_mutex)) {
-		/* some error occurred, ignore and go out */
+	if (mutex_lock_killable(&ap_scan_bus_mutex)) {
+		/* fatal signal received, go out */
 		goto out;
 	}
 	rc = ap_scan_bus_result;