[PATCH AUTOSEL 4.14 038/127] net/mlx5: Continue driver initialization despite debugfs failure

Sasha Levin
2019-11-22T06:11:42Z

From: Leon Romanovsky <leonro@mellanox.com>

[ Upstream commit 199fa087dc6b503baad06712716fac645a983e8a ]

The failure to create debugfs entry is unpleasant event, but not enough
to abort drier initialization. Align the mlx5_core code to debugfs design
and continue execution whenever debugfs_create_dir() successes or not.

Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters")
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/mellanox/mlx5/core/main.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index 97874c2568fc9..1ac0e173da12c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -838,11 +838,9 @@ static int mlx5_pci_init(struct mlx5_core_dev *dev, struct mlx5_priv *priv)

priv->numa_node = dev_to_node(&dev->pdev->dev);

- priv->dbg_root = debugfs_create_dir(dev_name(&pdev->dev), mlx5_debugfs_root);
- if (!priv->dbg_root) {
- dev_err(&pdev->dev, "Cannot create debugfs dir, aborting\n");
- return -ENOMEM;
- }
+ if (mlx5_debugfs_root)
+ priv->dbg_root =
+ debugfs_create_dir(pci_name(pdev), mlx5_debugfs_root);

err = mlx5_pci_enable_device(dev);
if (err) {
--
2.20.1