diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/genhd.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/block/genhd.c b/block/genhd.c index 22f899615801..de789d1a1e3d 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -420,6 +420,8 @@ int device_add_disk(struct device *parent, struct gendisk *disk, DISK_MAX_PARTS); disk->minors = DISK_MAX_PARTS; } + if (disk->first_minor + disk->minors > MINORMASK + 1) + return -EINVAL; } else { if (WARN_ON(disk->minors)) return -EINVAL; |