diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/uar.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/uar.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/uar.c b/drivers/net/ethernet/mellanox/mlx5/core/uar.c index 222b25908d01..8b97066dd1f1 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/uar.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/uar.c @@ -168,18 +168,16 @@ struct mlx5_uars_page *mlx5_get_uars_page(struct mlx5_core_dev *mdev) struct mlx5_uars_page *ret; mutex_lock(&mdev->priv.bfregs.reg_head.lock); - if (list_empty(&mdev->priv.bfregs.reg_head.list)) { - ret = alloc_uars_page(mdev, false); - if (IS_ERR(ret)) { - ret = NULL; - goto out; - } - list_add(&ret->list, &mdev->priv.bfregs.reg_head.list); - } else { + if (!list_empty(&mdev->priv.bfregs.reg_head.list)) { ret = list_first_entry(&mdev->priv.bfregs.reg_head.list, struct mlx5_uars_page, list); kref_get(&ret->ref_count); + goto out; } + ret = alloc_uars_page(mdev, false); + if (IS_ERR(ret)) + goto out; + list_add(&ret->list, &mdev->priv.bfregs.reg_head.list); out: mutex_unlock(&mdev->priv.bfregs.reg_head.lock); |