diff options
Diffstat (limited to 'drivers/xen/xenbus/xenbus_probe.c')
| -rw-r--r-- | drivers/xen/xenbus/xenbus_probe.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c index 88fc5ec665f5..57ceb5346b74 100644 --- a/drivers/xen/xenbus/xenbus_probe.c +++ b/drivers/xen/xenbus/xenbus_probe.c @@ -88,6 +88,16 @@ int xenbus_match(struct device *_dev, struct device_driver *_drv) return match_device(drv->ids, to_xenbus_device(_dev)) != NULL; } +static int xenbus_uevent(struct device *_dev, struct kobj_uevent_env *env) +{ + struct xenbus_device *dev = to_xenbus_device(_dev); + + if (add_uevent_var(env, "MODALIAS=xen:%s", dev->devicetype)) + return -ENOMEM; + + return 0; +} + /* device/<type>/<id> => <type>-<id> */ static int frontend_bus_id(char bus_id[BUS_ID_SIZE], const char *nodename) { @@ -166,6 +176,7 @@ static struct xen_bus_type xenbus_frontend = { .bus = { .name = "xen", .match = xenbus_match, + .uevent = xenbus_uevent, .probe = xenbus_dev_probe, .remove = xenbus_dev_remove, .shutdown = xenbus_dev_shutdown, @@ -438,6 +449,12 @@ static ssize_t xendev_show_devtype(struct device *dev, } DEVICE_ATTR(devtype, S_IRUSR | S_IRGRP | S_IROTH, xendev_show_devtype, NULL); +static ssize_t xendev_show_modalias(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "xen:%s\n", to_xenbus_device(dev)->devicetype); +} +DEVICE_ATTR(modalias, S_IRUSR | S_IRGRP | S_IROTH, xendev_show_modalias, NULL); int xenbus_probe_node(struct xen_bus_type *bus, const char *type, @@ -492,10 +509,16 @@ int xenbus_probe_node(struct xen_bus_type *bus, err = device_create_file(&xendev->dev, &dev_attr_devtype); if (err) - goto fail_remove_file; + goto fail_remove_nodename; + + err = device_create_file(&xendev->dev, &dev_attr_modalias); + if (err) + goto fail_remove_devtype; return 0; -fail_remove_file: +fail_remove_devtype: + device_remove_file(&xendev->dev, &dev_attr_devtype); +fail_remove_nodename: device_remove_file(&xendev->dev, &dev_attr_nodename); fail_unregister: device_unregister(&xendev->dev); |