From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Fri, 27 Mar 2020 21:35:39 -0500
Subject: RDMA/hns: Fix uninitialized variable bug
Patch-mainline: v5.7-rc1
Git-commit: d35dc58dd26e2aef5dd7ed1929179c9974f8bb97
References: jsc#SLE-14777

There is a potential execution path in which variable *ret* is returned
without being properly initialized, previously.

Fix this by initializing variable *ret* to 0.

Link: https://lore.kernel.org/r/20200328023539.GA32016@embeddedor
Addresses-Coverity-ID: 1491917 ("Uninitialized scalar variable")
Fixes: 2f49de21f3e9 ("RDMA/hns: Optimize mhop get flow for multi-hop addressing")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/hw/hns/hns_roce_hem.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/infiniband/hw/hns/hns_roce_hem.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hem.c
@@ -603,7 +603,7 @@ static int set_mhop_hem(struct hns_roce_
 {
 	struct ib_device *ibdev = &hr_dev->ib_dev;
 	int step_idx;
-	int ret;
+	int ret = 0;
 
 	if (index->inited & HEM_INDEX_L0) {
 		ret = hr_dev->hw->set_hem(hr_dev, table, obj, 0);