From: Leon Romanovsky <leonro@mellanox.com>
Date: Thu, 29 Nov 2018 10:25:29 +0000 (+0200)
Subject: RDMA/mlx5: Initialize return variable in case pagefault was skipped
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=7bca603a69c0c239654a8f0bcb99e1a60b30040c;p=openwrt%2Fstaging%2Fblogic.git

RDMA/mlx5: Initialize return variable in case pagefault was skipped

Pagefaults occurred in non-ODP MR are completely valid events, so
initialize return variable to 0.

Fixes: 4d5422a309de ("IB/mlx5: Skip non-ODP MR when handling a page fault")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
---

diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c
index b711a0f3aa35..2cc3d69ab6f6 100644
--- a/drivers/infiniband/hw/mlx5/odp.c
+++ b/drivers/infiniband/hw/mlx5/odp.c
@@ -679,6 +679,7 @@ next_mr:
 				    key);
 			if (bytes_mapped)
 				*bytes_mapped += bcnt;
+			ret = 0;
 			goto srcu_unlock;
 		}