diff options
| -rw-r--r-- | extras/volume_id/lib/fat.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/extras/volume_id/lib/fat.c b/extras/volume_id/lib/fat.c index 54e6bab7d2..3ddf0258eb 100644 --- a/extras/volume_id/lib/fat.c +++ b/extras/volume_id/lib/fat.c @@ -310,7 +310,7 @@ magic: if (!vs->reserved) return -1; - /* fat count*/ + /* fat count */ if (!vs->fats) return -1; @@ -318,15 +318,14 @@ magic: if (vs->media < 0xf8 && vs->media != 0xf0) return -1; - /* cluster size check*/ + /* cluster size check */ if (vs->sectors_per_cluster == 0 || (vs->sectors_per_cluster & (vs->sectors_per_cluster-1))) return -1; /* sector size check */ sector_size = le16_to_cpu(vs->sector_size); - if (sector_size != 0x200 && sector_size != 0x400 && - sector_size != 0x800 && sector_size != 0x1000) + if (sector_size == 0 || ((sector_size & (sector_size-1)) != 0)) return -1; dbg("sector_size 0x%x", sector_size); |