From: Roland Dreier Date: Tue, 31 Mar 2009 16:54:15 +0000 (-0700) Subject: mlx4_core: Don't leak mailbox for SET_PORT on Ethernet ports X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=352b09edd7fa8145bfc9e5db0cc0fed971b69440;p=linux-beck.git 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 --- diff --git a/drivers/net/mlx4/port.c b/drivers/net/mlx4/port.c index 7cce3342ef8c..606aa58afdea 100644 --- a/drivers/net/mlx4/port.c +++ b/drivers/net/mlx4/port.c @@ -299,13 +299,14 @@ int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port) 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,