diff options
| author | Hao Chen <chenhao288@hisilicon.com> | 2021-11-26 20:03:16 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-11-26 11:36:29 -0800 |
| commit | b8af344cfea189cdc0fef41345e55aed76723615 (patch) | |
| tree | 9366aaeb6fe10e6bfa8897e6c5b80c1a27799503 | |
| parent | 8d2ad993aa05c0768f00c886c9d369cd97a337ac (diff) | |
| download | linux-b8af344cfea189cdc0fef41345e55aed76723615.tar.gz | |
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: 850bfb912a6d ("net: hns3: debugfs add support dumping page pool info")
Signed-off-by: Hao Chen <chenhao288@hisilicon.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c index 67364ab63a1ff..fbb8a5f082226 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c @@ -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]; |