firmware loader: rely on driver core to create class attribute
Do not create 'timeout' attribute manually, let driver core do it for us.
This also ensures that attribute is cleaned up properly.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index d45d1e1..d351e77 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -101,9 +101,26 @@
return count;
}
-static CLASS_ATTR(timeout, 0644, firmware_timeout_show, firmware_timeout_store);
+static struct class_attribute firmware_class_attrs[] = {
+ __ATTR(timeout, S_IWUSR | S_IRUGO,
+ firmware_timeout_show, firmware_timeout_store),
+ __ATTR_NULL
+};
-static void fw_dev_release(struct device *dev);
+static void fw_dev_release(struct device *dev)
+{
+ struct firmware_priv *fw_priv = dev_get_drvdata(dev);
+ int i;
+
+ for (i = 0; i < fw_priv->nr_pages; i++)
+ __free_page(fw_priv->pages[i]);
+ kfree(fw_priv->pages);
+ kfree(fw_priv->fw_id);
+ kfree(fw_priv);
+ kfree(dev);
+
+ module_put(THIS_MODULE);
+}
static int firmware_uevent(struct device *dev, struct kobj_uevent_env *env)
{
@@ -121,6 +138,7 @@
static struct class firmware_class = {
.name = "firmware",
+ .class_attrs = firmware_class_attrs,
.dev_uevent = firmware_uevent,
.dev_release = fw_dev_release,
};
@@ -370,21 +388,6 @@
.write = firmware_data_write,
};
-static void fw_dev_release(struct device *dev)
-{
- struct firmware_priv *fw_priv = dev_get_drvdata(dev);
- int i;
-
- for (i = 0; i < fw_priv->nr_pages; i++)
- __free_page(fw_priv->pages[i]);
- kfree(fw_priv->pages);
- kfree(fw_priv->fw_id);
- kfree(fw_priv);
- kfree(dev);
-
- module_put(THIS_MODULE);
-}
-
static void
firmware_class_timeout(u_long data)
{
@@ -689,26 +692,12 @@
return 0;
}
-static int __init
-firmware_class_init(void)
+static int __init firmware_class_init(void)
{
- int error;
- error = class_register(&firmware_class);
- if (error) {
- printk(KERN_ERR "%s: class_register failed\n", __func__);
- return error;
- }
- error = class_create_file(&firmware_class, &class_attr_timeout);
- if (error) {
- printk(KERN_ERR "%s: class_create_file failed\n",
- __func__);
- class_unregister(&firmware_class);
- }
- return error;
-
+ return class_register(&firmware_class);
}
-static void __exit
-firmware_class_exit(void)
+
+static void __exit firmware_class_exit(void)
{
class_unregister(&firmware_class);
}