IB/mlx4: Check iboe netdev pointer before dereferencing it

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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>

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Kleber Sacilotto de Souza 2012-08-10 18:25:34 +00:00 • committed by Roland Dreier

parent 96f17d5900

commit a0675a386a

1 changed files with 5 additions and 1 deletions

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6

drivers/infiniband/hw/mlx4/qp.c

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