static int vio_bus_match(struct device *dev, struct device_driver *drv)
{
const struct vio_dev *vio_dev = to_vio_dev(dev);
struct vio_driver *vio_drv = to_vio_driver(drv);
const struct vio_device_id *ids = vio_drv->id_table;
return (ids != NULL) && (vio_match_device(ids, vio_dev) != NULL);
}
static int vio_bus_match(struct device *dev, struct device_driver *drv)
{
struct vio_dev *vio_dev = to_vio_dev(dev);
struct vio_driver *vio_drv = to_vio_driver(drv);
const struct vio_device_id *matches = vio_drv->id_table;
if (!matches)
return 0;
return vio_match_device(matches, vio_dev) != NULL;
}
static int vio_device_probe(struct device *dev)
{
struct vio_dev *vdev = to_vio_dev(dev);
struct vio_driver *drv = to_vio_driver(dev->driver);
const struct vio_device_id *id;
int error = -ENODEV;
if (drv->probe) {
id = vio_match_device(drv->id_table, vdev);
if (id)
error = drv->probe(vdev, id);
}
return error;
}
/*
* Convert from struct device to struct vio_dev and pass to driver.
* dev->driver has already been set by generic code because vio_bus_match
* succeeded.
*/
static int vio_bus_probe(struct device *dev)
{
struct vio_dev *viodev = to_vio_dev(dev);
struct vio_driver *viodrv = to_vio_driver(dev->driver);
const struct vio_device_id *id;
int error = -ENODEV;
if (!viodrv->probe)
return error;
id = vio_match_device(viodrv->id_table, viodev);
if (id)
error = viodrv->probe(viodev, id);
return error;
}