Re: [PATCH] net/mlx4_core: Add missed mlx4_free_cmd_mailbox()

mlx4_do_mirror_rule() forgets to call mlx4_free_cmd_mailbox() to
free the memory region allocated by mlx4_alloc_cmd_mailbox() before
an exit.
Add the missed call to fix it.

Fixes: 78efed275117 ("net/mlx4_core: Support mirroring VF DMFS rules on both ports")
Signed-off-by: Chuhong Yuan <redacted>
---
  drivers/net/ethernet/mellanox/mlx4/resource_tracker.c | 1 +
  1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index 394f43add85c..a99e71bc7b3c 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c

@@ -4986,6 +4986,7 @@ static int mlx4_do_mirror_rule(struct mlx4_dev *dev, struct res_fs_rule *fs_rule
  
  	if (!fs_rule->mirr_mbox) {
  		mlx4_err(dev, "rule mirroring mailbox is null\n");
+		mlx4_free_cmd_mailbox(dev, mailbox);
  		return -EINVAL;
  	}
  	memcpy(mailbox->buf, fs_rule->mirr_mbox, fs_rule->mirr_mbox_size);