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-rw-r--r--drivers/infiniband/hw/mthca/mthca_srq.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c
index 47a6a754a59..4e671e00e42 100644
--- a/drivers/infiniband/hw/mthca/mthca_srq.c
+++ b/drivers/infiniband/hw/mthca/mthca_srq.c
@@ -205,6 +205,10 @@ int mthca_alloc_srq(struct mthca_dev *dev, struct mthca_pd *pd,
ds = max(64UL,
roundup_pow_of_two(sizeof (struct mthca_next_seg) +
srq->max_gs * sizeof (struct mthca_data_seg)));
+
+ if (ds > dev->limits.max_desc_sz)
+ return -EINVAL;
+
srq->wqe_shift = long_log2(ds);
srq->srqn = mthca_alloc(&dev->srq_table.alloc);