diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/mtdconcat.c | 44 |
1 files changed, 12 insertions, 32 deletions
diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c index 7324ff832b41..c9785f96070e 100644 --- a/drivers/mtd/mtdconcat.c +++ b/drivers/mtd/mtdconcat.c @@ -437,7 +437,8 @@ static int concat_erase(struct mtd_info *mtd, struct erase_info *instr) return err; } -static int concat_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) +static int concat_xxlock(struct mtd_info *mtd, loff_t ofs, uint64_t len, + bool is_lock) { struct mtd_concat *concat = CONCAT(mtd); int i, err = -EINVAL; @@ -456,7 +457,10 @@ static int concat_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) else size = len; - err = mtd_lock(subdev, ofs, size); + if (is_lock) + err = mtd_lock(subdev, ofs, size); + else + err = mtd_unlock(subdev, ofs, size); if (err) break; @@ -471,38 +475,14 @@ static int concat_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) return err; } -static int concat_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len) +static int concat_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) { - struct mtd_concat *concat = CONCAT(mtd); - int i, err = 0; - - for (i = 0; i < concat->num_subdev; i++) { - struct mtd_info *subdev = concat->subdev[i]; - uint64_t size; - - if (ofs >= subdev->size) { - size = 0; - ofs -= subdev->size; - continue; - } - if (ofs + len > subdev->size) - size = subdev->size - ofs; - else - size = len; - - err = mtd_unlock(subdev, ofs, size); - if (err) - break; - - len -= size; - if (len == 0) - break; - - err = -EINVAL; - ofs = 0; - } + return concat_xxlock(mtd, ofs, len, true); +} - return err; +static int concat_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len) +{ + return concat_xxlock(mtd, ofs, len, false); } static void concat_sync(struct mtd_info *mtd) |