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IB/mlx5: Fix entries checks in mlx5_ib_create_cq

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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: 51ee86a4af ('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>
This commit is contained in:
Noa Osherovich 2016-06-04 15:15:34 +03:00 committed by Doug Ledford
parent 2cc6ad5f21
commit 9ea5785286
1 changed files with 2 additions and 1 deletions
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3
drivers/infiniband/hw/mlx5/cq.c
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@ -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))