diff options
Diffstat (limited to 'drivers/infiniband/hw/mlx5/qp.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/qp.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index e3c4ab9be41d..d5f072c50ee5 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -641,9 +641,9 @@ static void mlx5_ib_lock_cqs(struct mlx5_ib_cq *send_cq, static void mlx5_ib_unlock_cqs(struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *recv_cq); -static int bfregn_to_uar_index(struct mlx5_ib_dev *dev, - struct mlx5_bfreg_info *bfregi, int bfregn, - bool dyn_bfreg) +int bfregn_to_uar_index(struct mlx5_ib_dev *dev, + struct mlx5_bfreg_info *bfregi, int bfregn, + bool dyn_bfreg) { int bfregs_per_sys_page; int index_of_sys_page; @@ -653,6 +653,9 @@ static int bfregn_to_uar_index(struct mlx5_ib_dev *dev, MLX5_NON_FP_BFREGS_PER_UAR; index_of_sys_page = bfregn / bfregs_per_sys_page; + if (index_of_sys_page >= bfregi->num_sys_pages) + return -EINVAL; + if (dyn_bfreg) { index_of_sys_page += bfregi->num_static_sys_pages; if (bfregn > bfregi->num_dyn_bfregs || |