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authorTejun Heo <htejun@gmail.com>2007-06-14 03:45:17 +0900
committerGreg Kroah-Hartman <gregkh@suse.de>2007-07-11 16:09:06 -0700
commitad6a1e1c66009ba9dcd2f5c90ffa1fb4ce72fce0 (patch)
tree260f2a1707246998ba6f83ac1fa5a518626bbb1e /drivers/base/class.c
parent7b595756ec1f49e0049a9e01a1298d53a7faaa15 (diff)
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driver-core: make devt_attr and uevent_attr static
devt_attr and uevent_attr are either allocated dynamically with or embedded in device and class_device as they needed their owner field set to the module implementing the driver. Now that sysfs implements immediate disconnect and owner field removed from struct attribute, there is no reason to do this. Remove these attributes from [class_]device and use static attribute structures instead. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base/class.c')
-rw-r--r--drivers/base/class.c44
1 files changed, 16 insertions, 28 deletions
diff --git a/drivers/base/class.c b/drivers/base/class.c
index 9cbfde2..4d22226 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -312,9 +312,6 @@ static void class_dev_release(struct kobject * kobj)
pr_debug("device class '%s': release.\n", cd->class_id);
- kfree(cd->devt_attr);
- cd->devt_attr = NULL;
-
if (cd->release)
cd->release(cd);
else if (cls->release)
@@ -547,6 +544,9 @@ static ssize_t show_dev(struct class_device *class_dev, char *buf)
return print_dev_t(buf, class_dev->devt);
}
+static struct class_device_attribute class_devt_attr =
+ __ATTR(dev, S_IRUGO, show_dev, NULL);
+
static ssize_t store_uevent(struct class_device *class_dev,
const char *buf, size_t count)
{
@@ -554,6 +554,9 @@ static ssize_t store_uevent(struct class_device *class_dev,
return count;
}
+static struct class_device_attribute class_uevent_attr =
+ __ATTR(uevent, S_IWUSR, NULL, store_uevent);
+
void class_device_initialize(struct class_device *class_dev)
{
kobj_set_kset_s(class_dev, class_obj_subsys);
@@ -603,30 +606,15 @@ int class_device_add(struct class_device *class_dev)
&parent_class->subsys.kobj, "subsystem");
if (error)
goto out3;
- class_dev->uevent_attr.attr.name = "uevent";
- class_dev->uevent_attr.attr.mode = S_IWUSR;
- class_dev->uevent_attr.store = store_uevent;
- error = class_device_create_file(class_dev, &class_dev->uevent_attr);
+
+ error = class_device_create_file(class_dev, &class_uevent_attr);
if (error)
goto out3;
if (MAJOR(class_dev->devt)) {
- struct class_device_attribute *attr;
- attr = kzalloc(sizeof(*attr), GFP_KERNEL);
- if (!attr) {
- error = -ENOMEM;
- goto out4;
- }
- attr->attr.name = "dev";
- attr->attr.mode = S_IRUGO;
- attr->show = show_dev;
- error = class_device_create_file(class_dev, attr);
- if (error) {
- kfree(attr);
+ error = class_device_create_file(class_dev, &class_devt_attr);
+ if (error)
goto out4;
- }
-
- class_dev->devt_attr = attr;
}
error = class_device_add_attrs(class_dev);
@@ -669,10 +657,10 @@ int class_device_add(struct class_device *class_dev)
out6:
class_device_remove_attrs(class_dev);
out5:
- if (class_dev->devt_attr)
- class_device_remove_file(class_dev, class_dev->devt_attr);
+ if (MAJOR(class_dev->devt))
+ class_device_remove_file(class_dev, &class_devt_attr);
out4:
- class_device_remove_file(class_dev, &class_dev->uevent_attr);
+ class_device_remove_file(class_dev, &class_uevent_attr);
out3:
kobject_del(&class_dev->kobj);
out2:
@@ -772,9 +760,9 @@ void class_device_del(struct class_device *class_dev)
sysfs_remove_link(&class_dev->kobj, "device");
}
sysfs_remove_link(&class_dev->kobj, "subsystem");
- class_device_remove_file(class_dev, &class_dev->uevent_attr);
- if (class_dev->devt_attr)
- class_device_remove_file(class_dev, class_dev->devt_attr);
+ class_device_remove_file(class_dev, &class_uevent_attr);
+ if (MAJOR(class_dev->devt))
+ class_device_remove_file(class_dev, &class_devt_attr);
class_device_remove_attrs(class_dev);
class_device_remove_groups(class_dev);