diff mbox series

[v2,1/2] soc: hisilicon: kunpeng_hccs: Add the check for obtaining complete port attribute

Message ID 20240417094801.25393-2-lihuisong@huawei.com (mailing list archive)
State New, archived
Headers show
Series soc: hisilicon: kunpeng_hccs: add dependency and enhance verification | expand

Commit Message

lihuisong (C) April 17, 2024, 9:48 a.m. UTC
The hccs_get_all_port_attr() is used to obtained the attribute of all
ports on a specified DIE from firmware. However, this interface doesn't
ensure whether firmware reports the complete attribute of all ports or not.
So this patch adds the check for this.

Signed-off-by: Huisong Li <lihuisong@huawei.com>
---
 drivers/soc/hisilicon/kunpeng_hccs.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/drivers/soc/hisilicon/kunpeng_hccs.c b/drivers/soc/hisilicon/kunpeng_hccs.c
index 9ff70b38e5e9..e882a61636ec 100644
--- a/drivers/soc/hisilicon/kunpeng_hccs.c
+++ b/drivers/soc/hisilicon/kunpeng_hccs.c
@@ -556,6 +556,12 @@  static int hccs_get_all_port_attr(struct hccs_dev *hdev,
 		start_id = rsp_head.next_id;
 	}
 
+	if (left_buf_len != 0) {
+		dev_err(hdev->dev, "failed to get the expected port number(%u) attribute.\n",
+			size);
+		return -EINVAL;
+	}
+
 	return 0;
 }