diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
index 52a25b2538033bc0d8497e8baa3480eb18706e0d..4d9429b34a15292b6375f3726d946dcb5c1f53d6 100644
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@ -1244,7 +1244,7 @@ static void *qm_get_avail_sqe(struct hisi_qp *qp)
 	struct hisi_qp_status *qp_status = &qp->qp_status;
 	u16 sq_tail = qp_status->sq_tail;
 
-	if (unlikely(atomic_read(&qp->qp_status.used) == QM_Q_DEPTH))
+	if (unlikely(atomic_read(&qp->qp_status.used) == QM_Q_DEPTH - 1))
 		return NULL;
 
 	return qp->sqe + sq_tail * qp->qm->sqe_size;