diff options
Diffstat (limited to 'drivers/infiniband/hw')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/devx.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c index 98b1575226c1..fee800f2fdec 100644 --- a/drivers/infiniband/hw/mlx5/devx.c +++ b/drivers/infiniband/hw/mlx5/devx.c @@ -458,16 +458,21 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_QUERY_UAR)(struct ib_device *ib_de struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs) { - struct mlx5_ib_ucontext *c = devx_ufile2uctx(file); + struct mlx5_ib_ucontext *c; + struct mlx5_ib_dev *dev; u32 user_idx; s32 dev_idx; + c = devx_ufile2uctx(file); + if (IS_ERR(c)) + return PTR_ERR(c); + dev = to_mdev(c->ibucontext.device); + if (uverbs_copy_from(&user_idx, attrs, MLX5_IB_ATTR_DEVX_QUERY_UAR_USER_IDX)) return -EFAULT; - dev_idx = bfregn_to_uar_index(to_mdev(ib_dev), - &c->bfregi, user_idx, true); + dev_idx = bfregn_to_uar_index(dev, &c->bfregi, user_idx, true); if (dev_idx < 0) return dev_idx; @@ -482,8 +487,8 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OTHER)(struct ib_device *ib_dev, struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs) { - struct mlx5_ib_ucontext *c = devx_ufile2uctx(file); - struct mlx5_ib_dev *dev = to_mdev(ib_dev); + struct mlx5_ib_ucontext *c; + struct mlx5_ib_dev *dev; void *cmd_in = uverbs_attr_get_alloced_ptr( attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_IN); int cmd_out_len = uverbs_attr_get_len(attrs, @@ -491,6 +496,11 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OTHER)(struct ib_device *ib_dev, void *cmd_out; int err; + c = devx_ufile2uctx(file); + if (IS_ERR(c)) + return PTR_ERR(c); + dev = to_mdev(c->ibucontext.device); + if (!c->devx_uid) return -EPERM; |