diff options
Diffstat (limited to 'drivers/base/core.c')
| -rw-r--r-- | drivers/base/core.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c index 0027a2d1de99..cadcade65825 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -2409,6 +2409,25 @@ static ssize_t online_store(struct device *dev, struct device_attribute *attr, } static DEVICE_ATTR_RW(online); +static ssize_t removable_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + const char *loc; + + switch (dev->removable) { + case DEVICE_REMOVABLE: + loc = "removable"; + break; + case DEVICE_FIXED: + loc = "fixed"; + break; + default: + loc = "unknown"; + } + return sysfs_emit(buf, "%s\n", loc); +} +static DEVICE_ATTR_RO(removable); + int device_add_groups(struct device *dev, const struct attribute_group **groups) { return sysfs_create_groups(&dev->kobj, groups); @@ -2586,8 +2605,16 @@ static int device_add_attrs(struct device *dev) goto err_remove_dev_online; } + if (dev_removable_is_valid(dev)) { + error = device_create_file(dev, &dev_attr_removable); + if (error) + goto err_remove_dev_waiting_for_supplier; + } + return 0; + err_remove_dev_waiting_for_supplier: + device_remove_file(dev, &dev_attr_waiting_for_supplier); err_remove_dev_online: device_remove_file(dev, &dev_attr_online); err_remove_dev_groups: @@ -2607,6 +2634,7 @@ static void device_remove_attrs(struct device *dev) struct class *class = dev->class; const struct device_type *type = dev->type; + device_remove_file(dev, &dev_attr_removable); device_remove_file(dev, &dev_attr_waiting_for_supplier); device_remove_file(dev, &dev_attr_online); device_remove_groups(dev, dev->groups); |