diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/devices/docg3.c | 5 | ||||
| -rw-r--r-- | drivers/mtd/mtdpart.c | 23 | ||||
| -rw-r--r-- | drivers/mtd/nand/nand_base.c | 45 | ||||
| -rw-r--r-- | drivers/mtd/onenand/onenand_base.c | 18 |
4 files changed, 0 insertions, 91 deletions
diff --git a/drivers/mtd/devices/docg3.c b/drivers/mtd/devices/docg3.c index 5fb5e93d1547..a85af236b44d 100644 --- a/drivers/mtd/devices/docg3.c +++ b/drivers/mtd/devices/docg3.c @@ -904,9 +904,6 @@ static int doc_read_oob(struct mtd_info *mtd, loff_t from, if (ooblen % DOC_LAYOUT_OOB_SIZE) return -EINVAL; - if (from + len > mtd->size) - return -EINVAL; - ops->oobretlen = 0; ops->retlen = 0; ret = 0; @@ -1441,8 +1438,6 @@ static int doc_write_oob(struct mtd_info *mtd, loff_t ofs, if (len && ooblen && (len / DOC_LAYOUT_PAGE_SIZE) != (ooblen / oobdelta)) return -EINVAL; - if (ofs + len > mtd->size) - return -EINVAL; ops->oobretlen = 0; ops->retlen = 0; diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index dd28cb0de2c8..76cd21d1171b 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -108,25 +108,6 @@ static int part_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_ecc_stats stats; int res; - if (from >= mtd->size) - return -EINVAL; - if (ops->datbuf && from + ops->len > mtd->size) - return -EINVAL; - - /* - * If OOB is also requested, make sure that we do not read past the end - * of this partition. - */ - if (ops->oobbuf) { - size_t len, pages; - - len = mtd_oobavail(mtd, ops); - pages = mtd_div_by_ws(mtd->size, mtd); - pages -= mtd_div_by_ws(from, mtd); - if (ops->ooboffs + ops->ooblen > pages * len) - return -EINVAL; - } - stats = part->parent->ecc_stats; res = part->parent->_read_oob(part->parent, from + part->offset, ops); if (unlikely(mtd_is_eccerr(res))) @@ -191,10 +172,6 @@ static int part_write_oob(struct mtd_info *mtd, loff_t to, { struct mtd_part *part = mtd_to_part(mtd); - if (to >= mtd->size) - return -EINVAL; - if (ops->datbuf && to + ops->len > mtd->size) - return -EINVAL; return part->parent->_write_oob(part->parent, to + part->offset, ops); } diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 889ceadbf607..e7ec55b1d368 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2187,21 +2187,6 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, len = mtd_oobavail(mtd, ops); - if (unlikely(ops->ooboffs >= len)) { - pr_debug("%s: attempt to start read outside oob\n", - __func__); - return -EINVAL; - } - - /* Do not allow reads past end of device */ - if (unlikely(from >= mtd->size || - ops->ooboffs + readlen > ((mtd->size >> chip->page_shift) - - (from >> chip->page_shift)) * len)) { - pr_debug("%s: attempt to read beyond end of device\n", - __func__); - return -EINVAL; - } - chipnr = (int)(from >> chip->chip_shift); chip->select_chip(mtd, chipnr); @@ -2272,13 +2257,6 @@ static int nand_read_oob(struct mtd_info *mtd, loff_t from, ops->retlen = 0; - /* Do not allow reads past end of device */ - if (ops->datbuf && (from + ops->len) > mtd->size) { - pr_debug("%s: attempt to read beyond end of device\n", - __func__); - return -EINVAL; - } - if (ops->mode != MTD_OPS_PLACE_OOB && ops->mode != MTD_OPS_AUTO_OOB && ops->mode != MTD_OPS_RAW) @@ -2820,22 +2798,6 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to, return -EINVAL; } - if (unlikely(ops->ooboffs >= len)) { - pr_debug("%s: attempt to start write outside oob\n", - __func__); - return -EINVAL; - } - - /* Do not allow write past end of device */ - if (unlikely(to >= mtd->size || - ops->ooboffs + ops->ooblen > - ((mtd->size >> chip->page_shift) - - (to >> chip->page_shift)) * len)) { - pr_debug("%s: attempt to write beyond end of device\n", - __func__); - return -EINVAL; - } - chipnr = (int)(to >> chip->chip_shift); /* @@ -2891,13 +2853,6 @@ static int nand_write_oob(struct mtd_info *mtd, loff_t to, ops->retlen = 0; - /* Do not allow writes past end of device */ - if (ops->datbuf && (to + ops->len) > mtd->size) { - pr_debug("%s: attempt to write beyond end of device\n", - __func__); - return -EINVAL; - } - nand_get_device(mtd, FL_WRITING); switch (ops->mode) { diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 050ba8a87543..979f4031f23c 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -1383,15 +1383,6 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from, return -EINVAL; } - /* Do not allow reads past end of device */ - if (unlikely(from >= mtd->size || - column + len > ((mtd->size >> this->page_shift) - - (from >> this->page_shift)) * oobsize)) { - printk(KERN_ERR "%s: Attempted to read beyond end of device\n", - __func__); - return -EINVAL; - } - stats = mtd->ecc_stats; readcmd = ONENAND_IS_4KB_PAGE(this) ? ONENAND_CMD_READ : ONENAND_CMD_READOOB; @@ -2024,15 +2015,6 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to, return -EINVAL; } - /* Do not allow reads past end of device */ - if (unlikely(to >= mtd->size || - column + len > ((mtd->size >> this->page_shift) - - (to >> this->page_shift)) * oobsize)) { - printk(KERN_ERR "%s: Attempted to write past end of device\n", - __func__); - return -EINVAL; - } - oobbuf = this->oob_buf; oobcmd = ONENAND_IS_4KB_PAGE(this) ? ONENAND_CMD_PROG : ONENAND_CMD_PROGOOB; |