mlx4_core: Don't leak mailbox for SET_PORT on Ethernet ports
Commit 793730bf ("mlx4_core: Don't perform SET_PORT command for
Ethernet ports") introduced a leak of mailbox buffers when SET_PORT
was called for Ethernet ports, since it added a return after the
mailbox was allocated. Fix this by checking the port type and
returning *before* allocating the mailbox.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/net/mlx4/port.c b/drivers/net/mlx4/port.c
index 7cce334..606aa58 100644
--- a/drivers/net/mlx4/port.c
+++ b/drivers/net/mlx4/port.c
@@ -299,13 +299,14 @@
struct mlx4_cmd_mailbox *mailbox;
int err;
+ if (dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH)
+ return 0;
+
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
memset(mailbox->buf, 0, 256);
- if (dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH)
- return 0;
((__be32 *) mailbox->buf)[1] = dev->caps.ib_port_def_cap[port];
err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT,