tree 5fdd73c629fe7753fbd4c5b29317df7b96ee9e20
parent 4ff0acca7344c93fd9ed778b4c3ce16d95c594e4
author Moni Shoua <monis@mellanox.com> 1408620517 +0300
committer Roland Dreier <roland@purestorage.com> 1411404412 -0700

IB/mlx4: Avoid null pointer dereference in mlx4_ib_scan_netdevs()

When Ethernet netdev is not present for a port (e.g. when the link
layer type of the port is InfiniBand) it's possible to dereference a
null pointer when we do netdevice scanning.

To fix that, we move a section of code that needs to run only when
netdev is present to a proper if () statement.

Fixes: ad4885d279b6 ("IB/mlx4: Build the port IBoE GID table properly under bonding")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>