| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.6 040/177] net/mlx4_core: fix a memory leak bug. | Date | Mon, 1 Jun 2020 19:52:58 +0200 |
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From: Qiushi Wu <wu000273@umn.edu>
commit febfd9d3c7f74063e8e630b15413ca91b567f963 upstream.
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 <wu000273@umn.edu> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/net/ethernet/mellanox/mlx4/fw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- 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_struc 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);
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