diff options
Diffstat (limited to 'target/linux/generic/patches-4.9/412-mtd-partial_eraseblock_unlock.patch')
| -rw-r--r-- | target/linux/generic/patches-4.9/412-mtd-partial_eraseblock_unlock.patch | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.9/412-mtd-partial_eraseblock_unlock.patch b/target/linux/generic/patches-4.9/412-mtd-partial_eraseblock_unlock.patch new file mode 100644 index 0000000..e7c91c6 --- /dev/null +++ b/target/linux/generic/patches-4.9/412-mtd-partial_eraseblock_unlock.patch @@ -0,0 +1,20 @@ +--- a/drivers/mtd/mtdpart.c ++++ b/drivers/mtd/mtdpart.c +@@ -337,7 +337,16 @@ static int part_lock(struct mtd_info *mt + static int part_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len) + { + struct mtd_part *part = mtd_to_part(mtd); +- return part->master->_unlock(part->master, ofs + part->offset, len); ++ ++ ofs += part->offset; ++ ++ if (mtd->flags & MTD_ERASE_PARTIAL) { ++ /* round up len to next erasesize and round down offset to prev block */ ++ len = (mtd_div_by_eb(len, part->master) + 1) * part->master->erasesize; ++ ofs &= ~(part->master->erasesize - 1); ++ } ++ ++ return part->master->_unlock(part->master, ofs, len); + } + + static int part_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len) |