diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/genhd.h | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 1cf828148ec..ff293ec8b3f 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -16,9 +16,9 @@ #ifdef CONFIG_BLOCK #define kobj_to_dev(k) container_of((k), struct device, kobj) -#define dev_to_disk(device) container_of((device), struct gendisk, __dev) +#define dev_to_disk(device) container_of((device), struct gendisk, part0.__dev) #define dev_to_part(device) container_of((device), struct hd_struct, __dev) -#define disk_to_dev(disk) (&((disk)->__dev)) +#define disk_to_dev(disk) (&(disk)->part0.__dev) #define part_to_dev(part) (&((part)->__dev)) extern struct device_type part_type; @@ -141,7 +141,6 @@ struct gendisk { int flags; struct device *driverfs_dev; // FIXME: remove - struct device __dev; struct kobject *holder_dir; struct kobject *slave_dir; @@ -164,8 +163,12 @@ struct gendisk { static inline struct gendisk *part_to_disk(struct hd_struct *part) { - if (likely(part)) - return dev_to_disk(part_to_dev(part)->parent); + if (likely(part)) { + if (part->partno) + return dev_to_disk(part_to_dev(part)->parent); + else + return dev_to_disk(part_to_dev(part)); + } return NULL; } |