diff options
| author | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2012-02-03 18:23:52 +0400 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2012-03-27 03:28:18 +0400 |
| commit | 5def48982b778aaebe201f85af7170b7d0a6619f (patch) | |
| tree | 2920f1b524698877fab8521ee04349a5e285e47d /drivers/mtd/chips/cfi_cmdset_0020.c | |
| parent | 8273a0c911d8e068297ef70aa7241ee78db4c712 (diff) | |
| download | linux-5def48982b778aaebe201f85af7170b7d0a6619f.tar.xz | |
mtd: do not duplicate length and offset checks in drivers
We already verify that offset and length are within the MTD device size
in the MTD API functions. Let's remove the duplicated checks in drivers.
This patch only affects the following API's:
'mtd_erase()'
'mtd_point()'
'mtd_unpoint()'
'mtd_get_unmapped_area()'
'mtd_read()'
'mtd_write()'
'mtd_panic_write()'
'mtd_lock()'
'mtd_unlock()'
'mtd_is_locked()'
'mtd_block_isbad()'
'mtd_block_markbad()'
This patch adds a bit of noise by removing too sparse empty lines, but this is
not too bad.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/chips/cfi_cmdset_0020.c')
| -rw-r--r-- | drivers/mtd/chips/cfi_cmdset_0020.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0020.c b/drivers/mtd/chips/cfi_cmdset_0020.c index 3861cca97bb0..160402fb65d1 100644 --- a/drivers/mtd/chips/cfi_cmdset_0020.c +++ b/drivers/mtd/chips/cfi_cmdset_0020.c @@ -904,12 +904,6 @@ static int cfi_staa_erase_varsize(struct mtd_info *mtd, int i, first; struct mtd_erase_region_info *regions = mtd->eraseregions; - if (instr->addr > mtd->size) - return -EINVAL; - - if ((instr->len + instr->addr) > mtd->size) - return -EINVAL; - /* Check that both start and end of the requested erase are * aligned with the erasesize at the appropriate addresses. */ @@ -1155,9 +1149,6 @@ static int cfi_staa_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) if (len & (mtd->erasesize -1)) return -EINVAL; - if ((len + ofs) > mtd->size) - return -EINVAL; - chipnum = ofs >> cfi->chipshift; adr = ofs - (chipnum << cfi->chipshift); |