diff options
Diffstat (limited to 'drivers/mtd/mtdpart.c')
| -rw-r--r-- | drivers/mtd/mtdpart.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 99c460facd5e..b6af41b04622 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -61,6 +61,15 @@ static inline struct mtd_part *mtd_to_part(const struct mtd_info *mtd) return container_of(mtd, struct mtd_part, mtd); } +static u64 part_absolute_offset(struct mtd_info *mtd) +{ + struct mtd_part *part = mtd_to_part(mtd); + + if (!mtd_is_partition(mtd)) + return 0; + + return part_absolute_offset(part->parent) + part->offset; +} /* * MTD methods which simply translate the effective address and pass through @@ -346,7 +355,8 @@ static struct mtd_part *allocate_partition(struct mtd_info *parent, /* set up the MTD object for this partition */ slave->mtd.type = parent->type; - slave->mtd.flags = parent->flags & ~part->mask_flags; + slave->mtd.flags = parent->orig_flags & ~part->mask_flags; + slave->mtd.orig_flags = slave->mtd.flags; slave->mtd.size = part->size; slave->mtd.writesize = parent->writesize; slave->mtd.writebufsize = parent->writebufsize; @@ -513,7 +523,7 @@ static struct mtd_part *allocate_partition(struct mtd_info *parent, if (!(slave->mtd.flags & MTD_NO_ERASE)) wr_alignment = slave->mtd.erasesize; - tmp = slave->offset; + tmp = part_absolute_offset(parent) + slave->offset; remainder = do_div(tmp, wr_alignment); if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) { /* Doesn't start on a boundary of major erase size */ @@ -524,7 +534,7 @@ static struct mtd_part *allocate_partition(struct mtd_info *parent, part->name); } - tmp = slave->mtd.size; + tmp = part_absolute_offset(parent) + slave->mtd.size; remainder = do_div(tmp, wr_alignment); if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) { slave->mtd.flags &= ~MTD_WRITEABLE; |