From: Alex Vesker <va...@mellanox.com>
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 <va...@mellanox.com>
Signed-off-by: Tariq Toukan <tar...@mellanox.com>
---
drivers/net/ethernet/mellanox/mlx4/intf.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlx4/intf.c
b/drivers/net/ethernet/mellanox/mlx4/intf.c
index dec77d6f0ac9..5aeb6027b70e 100644
--- a/drivers/net/ethernet/mellanox/mlx4/intf.c
+++ b/drivers/net/ethernet/mellanox/mlx4/intf.c
@@ -218,6 +218,9 @@ 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);
mutex_lock(&intf_mutex);
--
1.8.3.1
