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>
diff --git a/drivers/mtd/lpddr/lpddr_cmds.c b/drivers/mtd/lpddr/lpddr_cmds.c
index de960b1..0f3731c 100644
--- a/drivers/mtd/lpddr/lpddr_cmds.c
+++ b/drivers/mtd/lpddr/lpddr_cmds.c
@@ -530,7 +530,7 @@
struct flchip *chip = &lpddr->chips[chipnum];
int ret = 0;
- if (!map->virt || (adr + len > mtd->size))
+ if (!map->virt)
return -EINVAL;
/* ofs: offset within the first chip that the first read should start */
@@ -692,9 +692,6 @@
ofs = instr->addr;
len = instr->len;
- if (ofs > mtd->size || (len + ofs) > mtd->size)
- return -EINVAL;
-
while (len > 0) {
ret = do_erase_oneblock(mtd, ofs);
if (ret)