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authorKamal Heib <kamalheib1@gmail.com>2021-11-17 16:59:54 +0200
committerJason Gunthorpe <jgg@nvidia.com>2021-11-17 16:52:18 -0400
commit2a67fcfa0db6b4075515bd23497750849b88850f (patch)
treeddb07c157175a73198bae03d00b0455f15d436a7 /drivers/infiniband/hw/hns/hns_roce_main.c
parent679f2b7552b4f3c28ba54ef4c5e7ab28374e30d2 (diff)
downloadlinux-2a67fcfa0db6b4075515bd23497750849b88850f.tar.gz
RDMA/hns: Validate the pkey index
Before query pkey, make sure that the queried index is valid.

Fixes: 9a4435375cd1 ("IB/hns: Add driver files for hns RoCE driver")
Link: https://lore.kernel.org/r/20211117145954.123893-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/hw/hns/hns_roce_main.c')
-rw-r--r--drivers/infiniband/hw/hns/hns_roce_main.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c
index 4194b626f3c6..8233bec053ee 100644
--- a/drivers/infiniband/hw/hns/hns_roce_main.c
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -270,6 +270,9 @@ static enum rdma_link_layer hns_roce_get_link_layer(struct ib_device *device,
 static int hns_roce_query_pkey(struct ib_device *ib_dev, u32 port, u16 index,
 			       u16 *pkey)
 {
+	if (index > 0)
+		return -EINVAL;
+
 	*pkey = PKEY_ID;
 
 	return 0;