Commit b8af344c authored by Hao Chen's avatar Hao Chen Committed by Jakub Kicinski
Browse files

net: hns3: add check NULL address for page pool 



When page pool is not enabled, its address value is still NULL and page
pool should not be accessed, so add a check for it.

Fixes: 850bfb91 ("net: hns3: debugfs add support dumping page pool info")
Signed-off-by: default avatarHao Chen <chenhao288@hisilicon.com>
Signed-off-by: default avatarGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 8d2ad993

drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c

+5 −0
Original line number Diff line number Diff line
@@ -1106,6 +1106,11 @@ hns3_dbg_page_pool_info(struct hnae3_handle *h, char *buf, int len) 
		return -EFAULT;

	}



	if (!priv->ring[h->kinfo.num_tqps].page_pool) {

		dev_err(&h->pdev->dev, "page pool is not initialized\n");

		return -EFAULT;

	}



	for (i = 0; i < ARRAY_SIZE(page_pool_info_items); i++)

		result[i] = &data_str[i][0];