From: Kamal Heib <[email protected]>
[ Upstream commit 6d8285e604e0221b67bd5db736921b7ddce37d00 ]
Before create CQ, make sure that the requested number of CQEs is in the
supported range.
Fixes: cfdda9d76436 ("RDMA/cxgb4: Add driver for Chelsio T4 RNIC")
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Kamal Heib <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/infiniband/hw/cxgb4/cq.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/infiniband/hw/cxgb4/cq.c
+++ b/drivers/infiniband/hw/cxgb4/cq.c
@@ -906,6 +906,9 @@ struct ib_cq *c4iw_create_cq(struct ib_d
rhp = to_c4iw_dev(ibdev);
+ if (entries < 1 || entries > ibdev->attrs.max_cqe)
+ return ERR_PTR(-EINVAL);
+
if (vector >= rhp->rdev.lldi.nciq)
return ERR_PTR(-EINVAL);
