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authorArtem Bityutskiy <artem.bityutskiy@linux.intel.com>2012-02-03 16:23:52 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2012-03-27 00:28:18 +0100
commit5def48982b778aaebe201f85af7170b7d0a6619f (patch)
tree2920f1b524698877fab8521ee04349a5e285e47d /drivers/mtd/devices/block2mtd.c
parent8273a0c911d8e068297ef70aa7241ee78db4c712 (diff)
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/block2mtd.c')
-rw-r--r--drivers/mtd/devices/block2mtd.c9
1 files changed, 0 insertions, 9 deletions
diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c
index 0fccf149f5aa..4c2f84c2a7c7 100644
--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
@@ -104,11 +104,6 @@ static int block2mtd_read(struct mtd_info *mtd, loff_t from, size_t len,
int offset = from & (PAGE_SIZE-1);
int cpylen;
- if (from > mtd->size)
- return -EINVAL;
- if (from + len > mtd->size)
- len = mtd->size - from;
-
if (retlen)
*retlen = 0;
@@ -190,10 +185,6 @@ static int block2mtd_write(struct mtd_info *mtd, loff_t to, size_t len,
if (!len)
return 0;
- if (to >= mtd->size)
- return -ENOSPC;
- if (to + len > mtd->size)
- len = mtd->size - to;
mutex_lock(&dev->write_mutex);
err = _block2mtd_write(dev, buf, to, len, retlen);