From: Gal Pressman <galpress@amazon.com>
Date: Mon, 7 Jan 2019 17:27:56 +0200
Subject: RDMA/qedr: Fix out of bounds index check in query pkey
Patch-mainline: v5.1-rc1
Git-commit: dbe30dae487e1a232158c24b432d45281c2805b7
References: bsc#1136456 jsc#SLE-4689

The pkey table size is QEDR_ROCE_PKEY_TABLE_LEN, index should be tested
for >= QEDR_ROCE_PKEY_TABLE_LEN instead of > QEDR_ROCE_PKEY_TABLE_LEN.

Fixes: a7efd7773e31 ("qedr: Add support for PD,PKEY and CQ verbs")
Signed-off-by: Gal Pressman <galpress@amazon.com>
Acked-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/hw/qedr/verbs.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -67,7 +67,7 @@ static inline int qedr_ib_copy_to_udata(
 
 int qedr_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey)
 {
-	if (index > QEDR_ROCE_PKEY_TABLE_LEN)
+	if (index >= QEDR_ROCE_PKEY_TABLE_LEN)
 		return -EINVAL;
 
 	*pkey = QEDR_ROCE_PKEY_DEFAULT;