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RDMA/hns: Validate the pkey index

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[ Upstream commit 2a67fcfa0db6b4075515bd23497750849b88850f ]

Before query pkey, make sure that the queried index is valid.

Fixes: 9a4435375c ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Kamal Heib 2021-11-17 16:59:54 +02:00 • committed by Greg Kroah-Hartman
commit 852f447ce0
1 changed files with 3 additions and 0 deletions
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3
drivers/infiniband/hw/hns/hns_roce_main.c
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@ -279,6 +279,9 @@ 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, u8 port, u16 index,
u16 *pkey)
{
if (index > 0)
return -EINVAL;
*pkey = PKEY_ID;
return 0;