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| author | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2012-02-03 16:23:52 +0200 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2012-03-27 00:28:18 +0100 |
| commit | 5def48982b778aaebe201f85af7170b7d0a6619f (patch) | |
| tree | 2920f1b524698877fab8521ee04349a5e285e47d /drivers/mtd/devices/m25p80.c | |
| parent | 8273a0c911d8e068297ef70aa7241ee78db4c712 (diff) | |
| download | linux-5def48982b778aaebe201f85af7170b7d0a6619f.tar.bz2 | |
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/devices/m25p80.c')
| -rw-r--r-- | drivers/mtd/devices/m25p80.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 8808da9ee31f..0955a8f4fd25 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -288,9 +288,6 @@ static int m25p80_erase(struct mtd_info *mtd, struct erase_info *instr) __func__, (long long)instr->addr, (long long)instr->len); - /* sanity checks */ - if (instr->addr + instr->len > flash->mtd.size) - return -EINVAL; div_u64_rem(instr->len, mtd->erasesize, &rem); if (rem) return -EINVAL; @@ -353,9 +350,6 @@ static int m25p80_read(struct mtd_info *mtd, loff_t from, size_t len, if (!len) return 0; - if (from + len > flash->mtd.size) - return -EINVAL; - spi_message_init(&m); memset(t, 0, (sizeof t)); @@ -423,9 +417,6 @@ static int m25p80_write(struct mtd_info *mtd, loff_t to, size_t len, if (!len) return(0); - if (to + len > flash->mtd.size) - return -EINVAL; - spi_message_init(&m); memset(t, 0, (sizeof t)); @@ -515,9 +506,6 @@ static int sst_write(struct mtd_info *mtd, loff_t to, size_t len, if (!len) return 0; - if (to + len > flash->mtd.size) - return -EINVAL; - spi_message_init(&m); memset(t, 0, (sizeof t)); |