diff options
Diffstat (limited to 'drivers/memstick/core')
| -rw-r--r-- | drivers/memstick/core/ms_block.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/memstick/core/ms_block.c b/drivers/memstick/core/ms_block.c index 1af157ce0a63..e3657efd045e 100644 --- a/drivers/memstick/core/ms_block.c +++ b/drivers/memstick/core/ms_block.c @@ -1339,6 +1339,10 @@ static int msb_ftl_initialize(struct msb_data *msb) return 0; msb->zone_count = msb->block_count / MS_BLOCKS_IN_ZONE; + if (msb->block_count > MS_MAX_ZONES * MS_BLOCKS_IN_ZONE) { + pr_err("Too many blocks: %d\n", msb->block_count); + return -EINVAL; + } msb->logical_block_count = msb->zone_count * 496 - 2; msb->used_blocks_bitmap = bitmap_zalloc(msb->block_count, GFP_KERNEL); |