From: Yang Shen Date: Fri, 25 Sep 2020 14:06:16 +0000 (+0800) Subject: crypto: hisilicon/zip - fix the return value when device is busy X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=42856f0a5a72080ec3424550572100e698e5043e;p=linux.git crypto: hisilicon/zip - fix the return value when device is busy As before, when the ZIP device is too busy to creat a request, it will return '-EBUSY'. But the crypto process think the '-EBUSY' means a successful request and wait for its completion. So replace '-EBUSY' with '-EAGAIN' to show crypto this request is failed. Fixes: 62c455ca853e("crypto: hisilicon - add HiSilicon ZIP...") Signed-off-by: Yang Shen Reviewed-by: Zhou Wang Signed-off-by: Herbert Xu --- diff --git a/drivers/crypto/hisilicon/zip/zip_crypto.c b/drivers/crypto/hisilicon/zip/zip_crypto.c index 48dc2fdc6a3c0..08b4660b014c6 100644 --- a/drivers/crypto/hisilicon/zip/zip_crypto.c +++ b/drivers/crypto/hisilicon/zip/zip_crypto.c @@ -498,7 +498,7 @@ static struct hisi_zip_req *hisi_zip_create_req(struct acomp_req *req, if (req_id >= req_q->size) { write_unlock(&req_q->req_lock); dev_dbg(&qp_ctx->qp->qm->pdev->dev, "req cache is full!\n"); - return ERR_PTR(-EBUSY); + return ERR_PTR(-EAGAIN); } set_bit(req_id, req_q->req_bitmap); @@ -564,6 +564,7 @@ static int hisi_zip_do_work(struct hisi_zip_req *req, ret = hisi_qp_send(qp, &zip_sqe); if (ret < 0) { atomic64_inc(&dfx->send_busy_cnt); + ret = -EAGAIN; dev_dbg_ratelimited(dev, "failed to send request!\n"); goto err_unmap_output; }