HID: hid-core: convert to use DRIVER_ATTR_RO and drv_groups
In the quest to get rid of DRIVER_ATTR(), this patch converts the
hid-core code to use DRIVER_ATTR_RO() and also moves to use drv_groups
as creating individual sysfs files is not good (it races with userspace
notifications.)
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: <linux-input@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 37084b6..9184033 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -2144,7 +2144,7 @@
* Adds a new dynamic hid device ID to this driver,
* and causes the driver to probe for all devices again.
*/
-static ssize_t store_new_id(struct device_driver *drv, const char *buf,
+static ssize_t new_id_store(struct device_driver *drv, const char *buf,
size_t count)
{
struct hid_driver *hdrv = to_hid_driver(drv);
@@ -2176,7 +2176,13 @@
return ret ? : count;
}
-static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
+static DRIVER_ATTR_WO(new_id);
+
+static struct attribute *hid_drv_attrs[] = {
+ &driver_attr_new_id.attr,
+ NULL,
+};
+ATTRIBUTE_GROUPS(hid_drv);
static void hid_free_dynids(struct hid_driver *hdrv)
{
@@ -2340,6 +2346,7 @@
static struct bus_type hid_bus_type = {
.name = "hid",
.dev_groups = hid_dev_groups,
+ .drv_groups = hid_drv_groups,
.match = hid_bus_match,
.probe = hid_device_probe,
.remove = hid_device_remove,
@@ -2779,8 +2786,6 @@
int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
const char *mod_name)
{
- int ret;
-
hdrv->driver.name = hdrv->name;
hdrv->driver.bus = &hid_bus_type;
hdrv->driver.owner = owner;
@@ -2789,21 +2794,12 @@
INIT_LIST_HEAD(&hdrv->dyn_list);
spin_lock_init(&hdrv->dyn_lock);
- ret = driver_register(&hdrv->driver);
- if (ret)
- return ret;
-
- ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
- if (ret)
- driver_unregister(&hdrv->driver);
-
- return ret;
+ return driver_register(&hdrv->driver);
}
EXPORT_SYMBOL_GPL(__hid_register_driver);
void hid_unregister_driver(struct hid_driver *hdrv)
{
- driver_remove_file(&hdrv->driver, &driver_attr_new_id);
driver_unregister(&hdrv->driver);
hid_free_dynids(hdrv);
}