static int xen_pcibk_xenbus_probe(struct xenbus_device *dev,
const struct xenbus_device_id *id)
{
int err = 0;
struct xen_pcibk_device *pdev = alloc_pdev(dev);
if (pdev == NULL) {
err = -ENOMEM;
xenbus_dev_fatal(dev, err,
"Error allocating xen_pcibk_device struct");
goto out;
}
/* wait for xend to configure us */
err = xenbus_switch_state(dev, XenbusStateInitWait);
if (err)
goto out;
/* watch the backend node for backend configuration information */
err = xenbus_watch_path(dev, dev->nodename, &pdev->be_watch,
xen_pcibk_be_watch);
if (err)
goto out;
pdev->be_watching = 1;
/* We need to force a call to our callback here in case
* xend already configured us!
*/
xen_pcibk_be_watch(&pdev->be_watch, NULL, 0);
out:
return err;
}
static int pcifront_xenbus_probe(struct xenbus_device *xdev,
const struct xenbus_device_id *id)
{
int err = 0;
struct pcifront_device *pdev = alloc_pdev(xdev);
if (pdev == NULL) {
err = -ENOMEM;
xenbus_dev_fatal(xdev, err,
"Error allocating pcifront_device struct");
goto out;
}
err = pcifront_publish_info(pdev);
out:
return err;
}
/* Process a probe from the xenbus */
static int
pcifront_probe(struct xenbus_device *xdev,
const struct xenbus_device_id *id)
{
int err = 0;
struct pcifront_device *pdev;
DPRINTF("xenbus probing\n");
if ((pdev = alloc_pdev(xdev)) == NULL)
goto out;
err = pcifront_publish_info(pdev);
out:
if (err)
put_pdev(pdev);
return err;
}