From: Danit Goldberg <danitg@mellanox.com>
Date: Mon, 16 Sep 2019 09:48:18 +0300
Subject: IB/mlx5: Free mpi in mp_slave mode
Patch-mainline: v5.4-rc1
Git-commit: 5d44adebbb7e785939df3db36ac360f5e8b73e44
References: bsc#1103991 FATE#326007

ib_add_slave_port() allocates a multiport struct but never frees it.
Don't leak memory, free the allocated mpi struct during driver unload.

Cc: <stable@vger.kernel.org>
Fixes: 32f69e4be269 ("{net, IB}/mlx5: Manage port association for multiport RoCE")
Link: https://lore.kernel.org/r/20190916064818.19823-3-leon@kernel.org
Signed-off-by: Danit Goldberg <danitg@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/hw/mlx5/main.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -6389,6 +6389,7 @@ static void mlx5_ib_remove(struct mlx5_c
 			mlx5_ib_unbind_slave_port(mpi->ibdev, mpi);
 		list_del(&mpi->list);
 		mutex_unlock(&mlx5_ib_multiport_mutex);
+		kfree(mpi);
 		return;
 	}