diff options
Diffstat (limited to 'block/genhd.c')
| -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 603db5d6f10c..626c8406f21a 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -431,6 +431,8 @@ int __must_check 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; |