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author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-24 00:07:26 (GMT) |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-24 00:07:26 (GMT) |
commit | c5e064a6981603de65c61c4989856e984c7ad66d (patch) | |
tree | 723a699b6fe163c2769e99de107b5802413c174e /drivers/base | |
parent | 2581c9cc0de6eeba8d5553c98aab6e0f75d184e0 (diff) | |
download | linux-c5e064a6981603de65c61c4989856e984c7ad66d.tar.xz |
driver core: core: use DEVICE_ATTR_RO
Use DEVICE_ATTR_RO() instead of a "raw" __ATTR macro, making it easier
to audit exactly what is going on with the sysfs files.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base')
-rw-r--r-- | drivers/base/core.c | 39 |
1 files changed, 16 insertions, 23 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c index ae1acdf..921b941 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -345,7 +345,7 @@ static const struct kset_uevent_ops device_uevent_ops = { .uevent = dev_uevent, }; -static ssize_t show_uevent(struct device *dev, struct device_attribute *attr, +static ssize_t uevent_show(struct device *dev, struct device_attribute *attr, char *buf) { struct kobject *top_kobj; @@ -388,7 +388,7 @@ out: return count; } -static ssize_t store_uevent(struct device *dev, struct device_attribute *attr, +static ssize_t uevent_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { enum kobject_action action; @@ -399,11 +399,9 @@ static ssize_t store_uevent(struct device *dev, struct device_attribute *attr, dev_err(dev, "uevent: unknown action-string\n"); return count; } +static DEVICE_ATTR_RW(uevent); -static struct device_attribute uevent_attr = - __ATTR(uevent, S_IRUGO | S_IWUSR, show_uevent, store_uevent); - -static ssize_t show_online(struct device *dev, struct device_attribute *attr, +static ssize_t online_show(struct device *dev, struct device_attribute *attr, char *buf) { bool val; @@ -414,7 +412,7 @@ static ssize_t show_online(struct device *dev, struct device_attribute *attr, return sprintf(buf, "%u\n", val); } -static ssize_t store_online(struct device *dev, struct device_attribute *attr, +static ssize_t online_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { bool val; @@ -429,9 +427,7 @@ static ssize_t store_online(struct device *dev, struct device_attribute *attr, unlock_device_hotplug(); return ret < 0 ? ret : count; } - -static struct device_attribute online_attr = - __ATTR(online, S_IRUGO | S_IWUSR, show_online, store_online); +static DEVICE_ATTR_RW(online); static int device_add_attributes(struct device *dev, struct device_attribute *attrs) @@ -531,7 +527,7 @@ static int device_add_attrs(struct device *dev) goto err_remove_type_groups; if (device_supports_offline(dev) && !dev->offline_disabled) { - error = device_create_file(dev, &online_attr); + error = device_create_file(dev, &dev_attr_online); if (error) goto err_remove_type_groups; } @@ -559,7 +555,7 @@ static void device_remove_attrs(struct device *dev) struct class *class = dev->class; const struct device_type *type = dev->type; - device_remove_file(dev, &online_attr); + device_remove_file(dev, &dev_attr_online); device_remove_groups(dev, dev->groups); if (type) @@ -572,15 +568,12 @@ static void device_remove_attrs(struct device *dev) } } - -static ssize_t show_dev(struct device *dev, struct device_attribute *attr, +static ssize_t dev_show(struct device *dev, struct device_attribute *attr, char *buf) { return print_dev_t(buf, dev->devt); } - -static struct device_attribute devt_attr = - __ATTR(dev, S_IRUGO, show_dev, NULL); +static DEVICE_ATTR_RO(dev); /* /sys/devices/ */ struct kset *devices_kset; @@ -1084,12 +1077,12 @@ int device_add(struct device *dev) if (platform_notify) platform_notify(dev); - error = device_create_file(dev, &uevent_attr); + error = device_create_file(dev, &dev_attr_uevent); if (error) goto attrError; if (MAJOR(dev->devt)) { - error = device_create_file(dev, &devt_attr); + error = device_create_file(dev, &dev_attr_dev); if (error) goto ueventattrError; @@ -1156,9 +1149,9 @@ done: device_remove_sys_dev_entry(dev); devtattrError: if (MAJOR(dev->devt)) - device_remove_file(dev, &devt_attr); + device_remove_file(dev, &dev_attr_dev); ueventattrError: - device_remove_file(dev, &uevent_attr); + device_remove_file(dev, &dev_attr_uevent); attrError: kobject_uevent(&dev->kobj, KOBJ_REMOVE); kobject_del(&dev->kobj); @@ -1254,7 +1247,7 @@ void device_del(struct device *dev) if (MAJOR(dev->devt)) { devtmpfs_delete_node(dev); device_remove_sys_dev_entry(dev); - device_remove_file(dev, &devt_attr); + device_remove_file(dev, &dev_attr_dev); } if (dev->class) { device_remove_class_symlinks(dev); @@ -1269,7 +1262,7 @@ void device_del(struct device *dev) klist_del(&dev->knode_class); mutex_unlock(&dev->class->p->mutex); } - device_remove_file(dev, &uevent_attr); + device_remove_file(dev, &dev_attr_uevent); device_remove_attrs(dev); bus_remove_device(dev); device_pm_remove(dev); |