From: Moshe Shemesh <moshe@mellanox.com>
Date: Wed, 29 Apr 2020 23:56:58 +0300
Subject: net/mlx5: Fix memory leak in mlx5_events_init
Git-commit: df14ad1eccb04a4a28c90389214dbacab085b244
Patch-mainline: 5.7-rc7
References: networking-stable-20_05_27

Fix memory leak in mlx5_events_init(), in case
create_single_thread_workqueue() fails, events
struct should be freed.

Fixes: 5d3c537f9070 ("net/mlx5: Handle event of power detection in the PCIE slot")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 drivers/net/ethernet/mellanox/mlx5/core/events.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/events.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/events.c
@@ -346,8 +346,10 @@ int mlx5_events_init(struct mlx5_core_de
 	events->dev = dev;
 	dev->priv.events = events;
 	events->wq = create_singlethread_workqueue("mlx5_events");
-	if (!events->wq)
+	if (!events->wq) {
+		kfree(events);
 		return -ENOMEM;
+	}
 	INIT_WORK(&events->pcie_core_work, mlx5_pcie_event);
 
 	return 0;