From: Qiushi Wu <wu000...@umn.edu>

In function mlx4_opreq_action(), pointer "mailbox" is not released,
when mlx4_cmd_box() return and error, causing a memory leak bug.
Fix this issue by going to "out" label, mlx4_free_cmd_mailbox() can
free this pointer.

Fixes: fe6f700d6cbb ("net/mlx4_core: Respond to operation request by firmware")
Signed-off-by: Qiushi Wu <wu000...@umn.edu>
---
 drivers/net/ethernet/mellanox/mlx4/fw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c 
b/drivers/net/ethernet/mellanox/mlx4/fw.c
index 6e501af0e532..f6ff9620a137 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -2734,7 +2734,7 @@ void mlx4_opreq_action(struct work_struct *work)
                if (err) {
                        mlx4_err(dev, "Failed to retrieve required operation: 
%d\n",
                                 err);
-                       return;
+                       goto out;
                }
                MLX4_GET(modifier, outbox, GET_OP_REQ_MODIFIER_OFFSET);
                MLX4_GET(token, outbox, GET_OP_REQ_TOKEN_OFFSET);
-- 
2.17.1

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