[PATCH 5/9] crypto: hisilicon/qm - Add the default processing branch

[Chenghai Huang <huangchenghai2@huawei.com>]

The cmd type can be extended. Currently, only four types of cmd
can be processed. Therefor, add the default processing branch
to intercept incorrect parameter input.

Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com>
---
 drivers/crypto/hisilicon/qm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
index 92f0a1d9b4a6..cedb3af1fc1a 100644
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@ -645,6 +645,9 @@ int qm_set_and_get_xqc(struct hisi_qm *qm, u8 cmd, void *xqc, u32 qp_id, bool op
 		tmp_xqc = qm->xqc_buf.aeqc;
 		xqc_dma = qm->xqc_buf.aeqc_dma;
 		break;
+	default:
+		dev_err(&qm->pdev->dev, "unknown mailbox cmd %u\n", cmd);
+		return -EINVAL;
 	}
 
 	/* Setting xqc will fail if master OOO is blocked. */
-- 
2.30.0