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path: root/drivers/infiniband/hw/mlx5/mr.c
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Diffstat (limited to 'drivers/infiniband/hw/mlx5/mr.c')
-rw-r--r--drivers/infiniband/hw/mlx5/mr.c39
1 files changed, 21 insertions, 18 deletions
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 5258ac870e6a..67985c69f9b9 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -844,30 +844,34 @@ static void prep_umr_unreg_wqe(struct mlx5_ib_dev *dev,
umrwr->mkey = key;
}
-static struct ib_umem *mr_umem_get(struct ib_pd *pd, u64 start, u64 length,
- int access_flags, int *npages,
- int *page_shift, int *ncont, int *order)
+static int mr_umem_get(struct ib_pd *pd, u64 start, u64 length,
+ int access_flags, struct ib_umem **umem,
+ int *npages, int *page_shift, int *ncont,
+ int *order)
{
struct mlx5_ib_dev *dev = to_mdev(pd->device);
- struct ib_umem *umem = ib_umem_get(pd->uobject->context, start, length,
- access_flags, 0);
- if (IS_ERR(umem)) {
+ int err;
+
+ *umem = ib_umem_get(pd->uobject->context, start, length,
+ access_flags, 0);
+ err = PTR_ERR_OR_ZERO(*umem);
+ if (err < 0) {
mlx5_ib_err(dev, "umem get failed (%ld)\n", PTR_ERR(umem));
- return (void *)umem;
+ return err;
}
- mlx5_ib_cont_pages(umem, start, MLX5_MKEY_PAGE_SHIFT_MASK, npages,
+ mlx5_ib_cont_pages(*umem, start, MLX5_MKEY_PAGE_SHIFT_MASK, npages,
page_shift, ncont, order);
if (!*npages) {
mlx5_ib_warn(dev, "avoid zero region\n");
- ib_umem_release(umem);
- return ERR_PTR(-EINVAL);
+ ib_umem_release(*umem);
+ return -EINVAL;
}
mlx5_ib_dbg(dev, "npages %d, ncont %d, order %d, page_shift %d\n",
*npages, *ncont, *order, *page_shift);
- return umem;
+ return 0;
}
static void mlx5_ib_umr_done(struct ib_cq *cq, struct ib_wc *wc)
@@ -1193,11 +1197,11 @@ struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
mlx5_ib_dbg(dev, "start 0x%llx, virt_addr 0x%llx, length 0x%llx, access_flags 0x%x\n",
start, virt_addr, length, access_flags);
- umem = mr_umem_get(pd, start, length, access_flags, &npages,
+ err = mr_umem_get(pd, start, length, access_flags, &umem, &npages,
&page_shift, &ncont, &order);
- if (IS_ERR(umem))
- return (void *)umem;
+ if (err < 0)
+ return ERR_PTR(err);
if (use_umr(order)) {
mr = reg_umr(pd, umem, virt_addr, length, ncont, page_shift,
@@ -1371,10 +1375,9 @@ int mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start,
*/
flags |= IB_MR_REREG_TRANS;
ib_umem_release(mr->umem);
- mr->umem = mr_umem_get(pd, addr, len, access_flags, &npages,
- &page_shift, &ncont, &order);
- if (IS_ERR(mr->umem)) {
- err = PTR_ERR(mr->umem);
+ err = mr_umem_get(pd, addr, len, access_flags, &mr->umem,
+ &npages, &page_shift, &ncont, &order);
+ if (err < 0) {
mr->umem = NULL;
return err;
}