diff options
| author | Eli Cohen <elic@nvidia.com> | 2023-04-03 13:40:39 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-04-04 17:08:30 +0200 |
| commit | f0417e72add5aed5997092b6eb76298290d866c9 (patch) | |
| tree | 2b01108cc20cff2b0c4b9338f30a8b973135608a /drivers/vdpa/mlx5 | |
| parent | tools/virtio: fix typo in README instructions (diff) | |
| download | linux-f0417e72add5aed5997092b6eb76298290d866c9.tar.xz linux-f0417e72add5aed5997092b6eb76298290d866c9.zip | |
vdpa/mlx5: Add and remove debugfs in setup/teardown driver
The right place to add the debugfs create is in
setup_driver() and remove it in teardown_driver().
Current code adds the debugfs when creating the device but resetting a
device will remove the debugfs subtree and subsequent set_driver will
not be able to create the files since the debugfs pointer is NULL.
Fixes: 294221004322 ("vdpa/mlx5: Add debugfs subtree")
Signed-off-by: Eli Cohen <elic@nvidia.com>
v3 -> v4:
Fix error flow in setup_driver()
Message-Id: <20230403114039.11102-1-elic@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'drivers/vdpa/mlx5')
| -rw-r--r-- | drivers/vdpa/mlx5/net/mlx5_vnet.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c index 520646ae7fa0..195963b82b63 100644 --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c @@ -2467,10 +2467,11 @@ static int setup_driver(struct mlx5_vdpa_dev *mvdev) err = 0; goto out; } + mlx5_vdpa_add_debugfs(ndev); err = setup_virtqueues(mvdev); if (err) { mlx5_vdpa_warn(mvdev, "setup_virtqueues\n"); - goto out; + goto err_setup; } err = create_rqt(ndev); @@ -2500,6 +2501,8 @@ err_tir: destroy_rqt(ndev); err_rqt: teardown_virtqueues(ndev); +err_setup: + mlx5_vdpa_remove_debugfs(ndev->debugfs); out: return err; } @@ -2513,6 +2516,8 @@ static void teardown_driver(struct mlx5_vdpa_net *ndev) if (!ndev->setup) return; + mlx5_vdpa_remove_debugfs(ndev->debugfs); + ndev->debugfs = NULL; teardown_steering(ndev); destroy_tir(ndev); destroy_rqt(ndev); @@ -3261,7 +3266,6 @@ static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name, if (err) goto err_reg; - mlx5_vdpa_add_debugfs(ndev); mgtdev->ndev = ndev; return 0; |