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authorNoa Osherovich <noaos@mellanox.com>2016-06-04 15:15:34 +0300
committerDoug Ledford <dledford@redhat.com>2016-06-07 17:03:50 +0300
commit9ea578528656e191c1097798a771ff08bab6f323 (patch)
treeca2eaee8b47d9550f470768982ab776503902258 /drivers/infiniband/hw/mlx5/cq.c
parent2cc6ad5f2130733e561f97dba7a2052f8ea024aa (diff)
downloadlinux-9ea578528656e191c1097798a771ff08bab6f323.tar.xz
IB/mlx5: Fix entries checks in mlx5_ib_create_cq
Number of entries shouldn't be greater than the device's max capability. This should be checked before rounding the entries number to power of two. Fixes: 51ee86a4af639 ('IB/mlx5: Fix check of number of entries...') Signed-off-by: Majd Dibbiny <majd@mellanox.com> Signed-off-by: Noa Osherovich <noaos@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/cq.c')
-rw-r--r--drivers/infiniband/hw/mlx5/cq.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c
index dabcc65bd65e..3984c68caae1 100644
--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -822,7 +822,8 @@ struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev,
int eqn;
int err;
- if (entries < 0)
+ if (entries < 0 ||
+ (entries > (1 << MLX5_CAP_GEN(dev->mdev, log_max_cq_sz))))
return ERR_PTR(-EINVAL);
if (check_cq_create_flags(attr->flags))