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path: root/drivers/infiniband/hw/mlx4/cq.c
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Diffstat (limited to 'drivers/infiniband/hw/mlx4/cq.c')
-rw-r--r--drivers/infiniband/hw/mlx4/cq.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c
index 543ecdd8667b..0176caa5792c 100644
--- a/drivers/infiniband/hw/mlx4/cq.c
+++ b/drivers/infiniband/hw/mlx4/cq.c
@@ -369,8 +369,7 @@ int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
int err;
mutex_lock(&cq->resize_mutex);
-
- if (entries < 1) {
+ if (entries < 1 || entries > dev->dev->caps.max_cqes) {
err = -EINVAL;
goto out;
}
@@ -381,7 +380,7 @@ int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
goto out;
}
- if (entries > dev->dev->caps.max_cqes) {
+ if (entries > dev->dev->caps.max_cqes + 1) {
err = -EINVAL;
goto out;
}
@@ -394,7 +393,7 @@ int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
/* Can't be smaller than the number of outstanding CQEs */
outst_cqe = mlx4_ib_get_outstanding_cqes(cq);
if (entries < outst_cqe + 1) {
- err = 0;
+ err = -EINVAL;
goto out;
}