diff options
Diffstat (limited to 'fs/hpfs/map.c')
| -rw-r--r-- | fs/hpfs/map.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/hpfs/map.c b/fs/hpfs/map.c index 4acb19d7835..803d3da3a0f 100644 --- a/fs/hpfs/map.c +++ b/fs/hpfs/map.c @@ -17,7 +17,8 @@ __le32 *hpfs_map_bitmap(struct super_block *s, unsigned bmp_block, struct quad_buffer_head *qbh, char *id) { secno sec; - if (hpfs_sb(s)->sb_chk) if (bmp_block * 16384 > hpfs_sb(s)->sb_fs_size) { + unsigned n_bands = (hpfs_sb(s)->sb_fs_size + 0x3fff) >> 14; + if (hpfs_sb(s)->sb_chk) if (bmp_block >= n_bands) { hpfs_error(s, "hpfs_map_bitmap called with bad parameter: %08x at %s", bmp_block, id); return NULL; } |