diff options
| author |   Daniel Jurgens <danielj@mellanox.com> | 2016-11-10 11:30:54 +0200 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2016-11-16 20:03:44 -0500 |
| commit | 37995116fecfce2b61ee3da6e73b3e394c6818f9 (patch) | |
| tree | 53f4cec46b40bd9e9ea13bbe2c18dd8f40b15b1e /drivers/infiniband/hw/mlx4/ah.c | |
| parent | IB/mlx5: Fix NULL pointer dereference on debug print (diff) | |
| download | linux-dev-37995116fecfce2b61ee3da6e73b3e394c6818f9.tar.xz linux-dev-37995116fecfce2b61ee3da6e73b3e394c6818f9.zip | |
IB/mlx4: Check gid_index return value
Check the returned GID index value and return an error if it is invalid.
Fixes: 5070cd2239bd ('IB/mlx4: Replace mechanism for RoCE GID management')
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx4/ah.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/ah.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx4/ah.c b/drivers/infiniband/hw/mlx4/ah.c index 5fc623362731..b9bf0759f10a 100644 --- a/drivers/infiniband/hw/mlx4/ah.c +++ b/drivers/infiniband/hw/mlx4/ah.c @@ -102,7 +102,10 @@ static struct ib_ah *create_iboe_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr if (vlan_tag < 0x1000) vlan_tag |= (ah_attr->sl & 7) << 13; ah->av.eth.port_pd = cpu_to_be32(to_mpd(pd)->pdn | (ah_attr->port_num << 24)); - ah->av.eth.gid_index = mlx4_ib_gid_index_to_real_index(ibdev, ah_attr->port_num, ah_attr->grh.sgid_index); + ret = mlx4_ib_gid_index_to_real_index(ibdev, ah_attr->port_num, ah_attr->grh.sgid_index); + if (ret < 0) + return ERR_PTR(ret); + ah->av.eth.gid_index = ret; ah->av.eth.vlan = cpu_to_be16(vlan_tag); ah->av.eth.hop_limit = ah_attr->grh.hop_limit; if (ah_attr->static_rate) { |