IB/usnic: Fix out of bounds index check in query pkey

[ Upstream commit 4959d5da5737dd804255c75b8cea0a2929ce279a ]

The pkey table size is one element, index should be tested for > 0 instead
of > 1.

Fixes: e3cf00d0a87f ("IB/usnic: Add Cisco VIC low-level hardware driver")
Signed-off-by: Gal Pressman <galpress@amazon.com>
Acked-by: Parvi Kaustubhi <pkaustub@cisco.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/infiniband/hw/usnic/usnic_ib_verbs.c b/drivers/infiniband/hw/usnic/usnic_ib_verbs.c
index f8e3211..8e18bfc 100644 (file)
--- a/drivers/infiniband/hw/usnic/usnic_ib_verbs.c
+++ b/drivers/infiniband/hw/usnic/usnic_ib_verbs.c
@@ -427,7 +427,7 @@ int usnic_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
 int usnic_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
                                u16 *pkey)
 {
-       if (index > 1)
+       if (index > 0)
                return -EINVAL;
 
        *pkey = 0xffff;