IB/mthca: Check SRQ limit in modify SRQ operation
When setting the shared receive queue (SRQ) watermark in a modify SRQ
operation, make sure that the supplied value is not larger than the
full size of the SRQ.
Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c
index 4e671e0..0cfd158 100644
--- a/drivers/infiniband/hw/mthca/mthca_srq.c
+++ b/drivers/infiniband/hw/mthca/mthca_srq.c
@@ -358,6 +358,8 @@
return -EINVAL;
if (attr_mask & IB_SRQ_LIMIT) {
+ if (attr->srq_limit > srq->max)
+ return -EINVAL;
ret = mthca_ARM_SRQ(dev, srq->srqn, attr->srq_limit, &status);
if (ret)
return ret;