diff options
| author | Alex Vesker <valex@mellanox.com> | 2016-07-25 15:42:13 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-05-10 10:26:19 +0200 |
| commit | 69ef883d4f16162fca5de2cd36e2db8025db25f8 (patch) | |
| tree | 3f3c7362376ff613fdf5db0a3068dbd631c72f7a /drivers/net/ethernet/mellanox | |
| parent | e6411dccabcfe6c05759b185aedcc0e017b18f74 (diff) | |
net/mlx4_core: Check device state before unregistering it
commit 9b022a6e0f26af108b9105b16b310393c898d9bd upstream.
Verify that the device state is registered before un-registering it.
This check is required to prevent an OOPS on flows that do
re-registration of the device and its previous state was
unregistered.
Fixes: 225c7b1feef1 ("IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adapters")
Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/ethernet/mellanox')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/intf.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/intf.c b/drivers/net/ethernet/mellanox/mlx4/intf.c index 1a134e08f010..cfc2a7632201 100644 --- a/drivers/net/ethernet/mellanox/mlx4/intf.c +++ b/drivers/net/ethernet/mellanox/mlx4/intf.c @@ -217,6 +217,9 @@ void mlx4_unregister_device(struct mlx4_dev *dev) struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_interface *intf; + if (!(dev->persist->interface_state & MLX4_INTERFACE_STATE_UP)) + return; + mlx4_stop_catas_poll(dev); if (dev->persist->interface_state & MLX4_INTERFACE_STATE_DELETION && mlx4_is_slave(dev)) { |