sysfs: Introducing binary attributes for struct class
Added dev_bin_attrs to struct class similar to existing dev_attrs. Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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@ -338,6 +338,35 @@ static void device_remove_attributes(struct device *dev,
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device_remove_file(dev, &attrs[i]);
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}
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static int device_add_bin_attributes(struct device *dev,
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struct bin_attribute *attrs)
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{
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int error = 0;
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int i;
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if (attrs) {
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for (i = 0; attr_name(attrs[i]); i++) {
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error = device_create_bin_file(dev, &attrs[i]);
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if (error)
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break;
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}
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if (error)
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while (--i >= 0)
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device_remove_bin_file(dev, &attrs[i]);
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}
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return error;
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}
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static void device_remove_bin_attributes(struct device *dev,
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struct bin_attribute *attrs)
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{
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int i;
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if (attrs)
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for (i = 0; attr_name(attrs[i]); i++)
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device_remove_bin_file(dev, &attrs[i]);
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}
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static int device_add_groups(struct device *dev,
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const struct attribute_group **groups)
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{
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@ -378,12 +407,15 @@ static int device_add_attrs(struct device *dev)
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error = device_add_attributes(dev, class->dev_attrs);
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if (error)
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return error;
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error = device_add_bin_attributes(dev, class->dev_bin_attrs);
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if (error)
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goto err_remove_class_attrs;
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}
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if (type) {
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error = device_add_groups(dev, type->groups);
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if (error)
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goto err_remove_class_attrs;
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goto err_remove_class_bin_attrs;
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}
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error = device_add_groups(dev, dev->groups);
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@ -395,6 +427,9 @@ static int device_add_attrs(struct device *dev)
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err_remove_type_groups:
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if (type)
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device_remove_groups(dev, type->groups);
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err_remove_class_bin_attrs:
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if (class)
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device_remove_bin_attributes(dev, class->dev_bin_attrs);
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err_remove_class_attrs:
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if (class)
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device_remove_attributes(dev, class->dev_attrs);
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@ -412,8 +447,10 @@ static void device_remove_attrs(struct device *dev)
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if (type)
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device_remove_groups(dev, type->groups);
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if (class)
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if (class) {
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device_remove_attributes(dev, class->dev_attrs);
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device_remove_bin_attributes(dev, class->dev_bin_attrs);
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}
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}
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@ -197,6 +197,7 @@ struct class {
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struct class_attribute *class_attrs;
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struct device_attribute *dev_attrs;
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struct bin_attribute *dev_bin_attrs;
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struct kobject *dev_kobj;
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int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env);
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