The memory not needed to clear that will be freed. and the memset is useless after the dma is freed. Signed-off-by: Kai Ye <yekai13@xxxxxxxxxx> --- drivers/crypto/hisilicon/qm.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c index 13cb421..88a6c6f 100644 --- a/drivers/crypto/hisilicon/qm.c +++ b/drivers/crypto/hisilicon/qm.c @@ -2527,7 +2527,6 @@ void hisi_qm_uninit(struct hisi_qm *qm) hisi_qm_cache_wb(qm); dma_free_coherent(dev, qm->qdma.size, qm->qdma.va, qm->qdma.dma); - memset(&qm->qdma, 0, sizeof(qm->qdma)); } qm_irq_unregister(qm); -- 2.8.1