tree a57632edea051c706e3efedfdfafb0ebf580cf00
parent 96f17d590092ae2511adf599a252e8ed1901b7a4
author Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com> 1344623134 +0000
committer Roland Dreier <roland@purestorage.com> 1345135099 -0700

IB/mlx4: Check iboe netdev pointer before dereferencing it

Unlike other parts of the mlx4_ib code, the function build_mlx_header()
doesn't check if the iboe netdev of the given port is valid before
dereferencing it, which can cause a crash if the ethernet interface
has already been taken down.

Fix this by checking for a valid netdev pointer before using it to get
the port MAC address.

Signed-off-by: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>