netdev - [PATCH] net/mlx4_core: Add missed mlx4_free_cmd

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Message-Id: <20210221143559.390277-1-hslester96@gmail.com>
Date:   Sun, 21 Feb 2021 22:35:59 +0800
From:   Chuhong Yuan <hslester96@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Tariq Toukan <tariqt@...dia.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Or Gerlitz <ogerlitz@...lanox.com>,
        Jack Morgenstein <jackm@....mellanox.co.il>,
        Moni Shoua <monis@...lanox.com>, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
        Chuhong Yuan <hslester96@...il.com>
Subject: [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 <hslester96@...il.com>
---
 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);
-- 
2.27.0