The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not necessary to manually clear the
device driver data to NULL.
Cc: Joe Jin <joe.jin@oracle.com>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 
 err_disable_pdev:
        mlx4_pci_disable_device(&priv->dev);
-       pci_set_drvdata(pdev, NULL);
        return err;
 }
 
        devlink_unregister(devlink);
        kfree(dev->persist);
        devlink_free(devlink);
-       pci_set_drvdata(pdev, NULL);
 }
 
 static int restore_current_port_types(struct mlx4_dev *dev,