diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-settings.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/block/blk-settings.c b/block/blk-settings.c index d138abc973bb..a9e65dc090da 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -193,8 +193,13 @@ static int blk_validate_integrity_limits(struct queue_limits *lim) break; } - if (!bi->interval_exp) + if (!bi->interval_exp) { bi->interval_exp = ilog2(lim->logical_block_size); + } else if (bi->interval_exp < SECTOR_SHIFT || + bi->interval_exp > ilog2(lim->logical_block_size)) { + pr_warn("invalid interval_exp %u\n", bi->interval_exp); + return -EINVAL; + } /* * The PI generation / validation helpers do not expect intervals to |