diff options
| -rw-r--r-- | drivers/mtd/mtdpart.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 9cf73d360e7..5aac59c21ea 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -424,18 +424,24 @@ static struct mtd_part *add_one_partition(struct mtd_info *master, } if (master->numeraseregions > 1) { /* Deal with variable erase size stuff */ - int i; + int i, max = master->numeraseregions; + u32 end = slave->offset + slave->mtd.size; struct mtd_erase_region_info *regions = master->eraseregions; - /* Find the first erase regions which is part of this partition. */ - for (i = 0; i < master->numeraseregions && regions[i].offset <= slave->offset; i++) + /* Find the first erase regions which is part of this + * partition. */ + for (i = 0; i < max && regions[i].offset <= slave->offset; i++) ; + /* The loop searched for the region _behind_ the first one */ + i--; - for (i--; i < master->numeraseregions && regions[i].offset < slave->offset + slave->mtd.size; i++) { + /* Pick biggest erasesize */ + for (; i < max && regions[i].offset < end; i++) { if (slave->mtd.erasesize < regions[i].erasesize) { slave->mtd.erasesize = regions[i].erasesize; } } + BUG_ON(slave->mtd.erasesize == 0); } else { /* Single erase size */ slave->mtd.erasesize = master->erasesize; |