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Commit 51ee86a4 authored by Eli Cohen's avatar Eli Cohen Committed by Roland Dreier
Browse files

IB/mlx5: Fix check of number of entries in create CQ 



Verify that the value is non negative before rounding up to power of 2.

Signed-off-by: default avatarEli Cohen <eli@mellanox.com>
Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
parent 959f5854

drivers/infiniband/hw/mlx5/cq.c

+4 −1
Original line number Diff line number Diff line
@@ -653,8 +653,11 @@ struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev, int entries, 
	int eqn;

	int err;



	if (entries < 0)

		return ERR_PTR(-EINVAL);



	entries = roundup_pow_of_two(entries + 1);

	if (entries < 1 || entries > dev->mdev.caps.max_cqes)

	if (entries > dev->mdev.caps.max_cqes)

		return ERR_PTR(-EINVAL);



	cq = kzalloc(sizeof(*cq), GFP_KERNEL);