diff options
Diffstat (limited to 'drivers/block/brd.c')
| -rw-r--r-- | drivers/block/brd.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/block/brd.c b/drivers/block/brd.c index 4f688434daf1..28dafe54bc2b 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -531,6 +531,9 @@ static int __init brd_init(void) if (max_part > 0) part_shift = fls(max_part); + if ((1UL << part_shift) > DISK_MAX_PARTS) + return -EINVAL; + if (rd_nr > 1UL << (MINORBITS - part_shift)) return -EINVAL; |