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| author | Ezequiel Garcia <ezequiel.garcia@free-electrons.com> | 2014-05-22 00:06:12 +0200 |
|---|---|---|
| committer | Brian Norris <computersforpeace@gmail.com> | 2014-07-09 03:38:16 +0200 |
| commit | 8471bb73ba10ed6788b4f1e9b8a0f9dc6bdb05b5 (patch) | |
| tree | 12fdaa370ab34c38c4057ddca0a2bcd52b5744a8 /drivers/mtd/mtdcore.c | |
| parent | mtd: Add sysfs attributes to expose the ECC stats fields (diff) | |
| download | linux-8471bb73ba10ed6788b4f1e9b8a0f9dc6bdb05b5.tar.xz linux-8471bb73ba10ed6788b4f1e9b8a0f9dc6bdb05b5.zip | |
mtd: Introduce mtd_block_isreserved()
In addition to mtd_block_isbad(), which checks if a block is bad or
reserved, it's needed to check if a block is reserved only (but not
bad). This commit adds an MTD interface for it, in a similar fashion to
mtd_block_isbad().
While here, fix mtd_block_isbad() so the out-of-bounds checking is done
before the callback check.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Pekon Gupta <pekon@ti.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Diffstat (limited to 'drivers/mtd/mtdcore.c')
| -rw-r--r-- | drivers/mtd/mtdcore.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 11857faa0d96..e4831b4159db 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -1043,12 +1043,22 @@ int mtd_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len) } EXPORT_SYMBOL_GPL(mtd_is_locked); -int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs) +int mtd_block_isreserved(struct mtd_info *mtd, loff_t ofs) { - if (!mtd->_block_isbad) + if (ofs < 0 || ofs > mtd->size) + return -EINVAL; + if (!mtd->_block_isreserved) return 0; + return mtd->_block_isreserved(mtd, ofs); +} +EXPORT_SYMBOL_GPL(mtd_block_isreserved); + +int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs) +{ if (ofs < 0 || ofs > mtd->size) return -EINVAL; + if (!mtd->_block_isbad) + return 0; return mtd->_block_isbad(mtd, ofs); } EXPORT_SYMBOL_GPL(mtd_block_isbad); |