diff options
| -rw-r--r-- | drivers/s390/block/dcssblk.c | 52 |
1 files changed, 23 insertions, 29 deletions
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c index a5a55da2a1a..b6ad0de0793 100644 --- a/drivers/s390/block/dcssblk.c +++ b/drivers/s390/block/dcssblk.c @@ -69,23 +69,9 @@ static ssize_t dcssblk_add_store(struct device * dev, struct device_attribute *a size_t count); static ssize_t dcssblk_remove_store(struct device * dev, struct device_attribute *attr, const char * buf, size_t count); -static ssize_t dcssblk_save_store(struct device * dev, struct device_attribute *attr, const char * buf, - size_t count); -static ssize_t dcssblk_save_show(struct device *dev, struct device_attribute *attr, char *buf); -static ssize_t dcssblk_shared_store(struct device * dev, struct device_attribute *attr, const char * buf, - size_t count); -static ssize_t dcssblk_shared_show(struct device *dev, struct device_attribute *attr, char *buf); -static ssize_t dcssblk_seglist_show(struct device *dev, - struct device_attribute *attr, - char *buf); static DEVICE_ATTR(add, S_IWUSR, NULL, dcssblk_add_store); static DEVICE_ATTR(remove, S_IWUSR, NULL, dcssblk_remove_store); -static DEVICE_ATTR(save, S_IWUSR | S_IRUSR, dcssblk_save_show, - dcssblk_save_store); -static DEVICE_ATTR(shared, S_IWUSR | S_IRUSR, dcssblk_shared_show, - dcssblk_shared_store); -static DEVICE_ATTR(seglist, S_IRUSR, dcssblk_seglist_show, NULL); static struct device *dcssblk_root_dev; @@ -416,6 +402,8 @@ out: up_write(&dcssblk_devices_sem); return rc; } +static DEVICE_ATTR(shared, S_IWUSR | S_IRUSR, dcssblk_shared_show, + dcssblk_shared_store); /* * device attribute for save operation on current copy @@ -476,6 +464,8 @@ dcssblk_save_store(struct device *dev, struct device_attribute *attr, const char up_write(&dcssblk_devices_sem); return count; } +static DEVICE_ATTR(save, S_IWUSR | S_IRUSR, dcssblk_save_show, + dcssblk_save_store); /* * device attribute for showing all segments in a device @@ -502,6 +492,21 @@ dcssblk_seglist_show(struct device *dev, struct device_attribute *attr, up_read(&dcssblk_devices_sem); return i; } +static DEVICE_ATTR(seglist, S_IRUSR, dcssblk_seglist_show, NULL); + +static struct attribute *dcssblk_dev_attrs[] = { + &dev_attr_shared.attr, + &dev_attr_save.attr, + &dev_attr_seglist.attr, + NULL, +}; +static struct attribute_group dcssblk_dev_attr_group = { + .attrs = dcssblk_dev_attrs, +}; +static const struct attribute_group *dcssblk_dev_attr_groups[] = { + &dcssblk_dev_attr_group, + NULL, +}; /* * device attribute for adding devices @@ -590,6 +595,7 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char dev_set_name(&dev_info->dev, dev_info->segment_name); dev_info->dev.release = dcssblk_release_segment; + dev_info->dev.groups = dcssblk_dev_attr_groups; INIT_LIST_HEAD(&dev_info->lh); dev_info->gd = alloc_disk(DCSSBLK_MINORS_PER_DISK); if (dev_info->gd == NULL) { @@ -637,21 +643,10 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char * register the device */ rc = device_register(&dev_info->dev); - if (rc) { - module_put(THIS_MODULE); - goto dev_list_del; - } - get_device(&dev_info->dev); - rc = device_create_file(&dev_info->dev, &dev_attr_shared); - if (rc) - goto unregister_dev; - rc = device_create_file(&dev_info->dev, &dev_attr_save); - if (rc) - goto unregister_dev; - rc = device_create_file(&dev_info->dev, &dev_attr_seglist); if (rc) - goto unregister_dev; + goto put_dev; + get_device(&dev_info->dev); add_disk(dev_info->gd); switch (dev_info->segment_type) { @@ -668,12 +663,11 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char rc = count; goto out; -unregister_dev: +put_dev: list_del(&dev_info->lh); blk_cleanup_queue(dev_info->dcssblk_queue); dev_info->gd->queue = NULL; put_disk(dev_info->gd); - device_unregister(&dev_info->dev); list_for_each_entry(seg_info, &dev_info->seg_list, lh) { segment_unload(seg_info->segment_name); } |