1 files changed, 1 insertions, 29 deletions

diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index da8a0b28316c..fbe2c8a22e1c 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -65,11 +65,6 @@ static int part_read(struct mtd_info *mtd, loff_t from, size_t len,
         int res;
 
         stats = part->master->ecc_stats;
-
-        if (from >= mtd->size)
-                len = 0;
-        else if (from + len > mtd->size)
-                len = mtd->size - from;
         res = mtd_read(part->master, from + part->offset, len, retlen, buf);
         if (unlikely(res)) {
                 if (mtd_is_bitflip(res))
@@ -84,10 +79,7 @@ static int part_point(struct mtd_info *mtd, loff_t from, size_t len,
                 size_t *retlen, void **virt, resource_size_t *phys)
 {
         struct mtd_part *part = PART(mtd);
-        if (from >= mtd->size)
-                len = 0;
-        else if (from + len > mtd->size)
-                len = mtd->size - from;
+
         return mtd_point(part->master, from + part->offset, len, retlen,
                          virt, phys);
 }
@@ -182,10 +174,6 @@ static int part_write(struct mtd_info *mtd, loff_t to, size_t len,
         struct mtd_part *part = PART(mtd);
         if (!(mtd->flags & MTD_WRITEABLE))
                 return -EROFS;
-        if (to >= mtd->size)
-                len = 0;
-        else if (to + len > mtd->size)
-                len = mtd->size - to;
         return mtd_write(part->master, to + part->offset, len, retlen, buf);
 }
 
@@ -195,10 +183,6 @@ static int part_panic_write(struct mtd_info *mtd, loff_t to, size_t len,
         struct mtd_part *part = PART(mtd);
         if (!(mtd->flags & MTD_WRITEABLE))
                 return -EROFS;
-        if (to >= mtd->size)
-                len = 0;
-        else if (to + len > mtd->size)
-                len = mtd->size - to;
         return mtd_panic_write(part->master, to + part->offset, len, retlen,
                                buf);
 }
@@ -248,8 +232,6 @@ static int part_erase(struct mtd_info *mtd, struct erase_info *instr)
         int ret;
         if (!(mtd->flags & MTD_WRITEABLE))
                 return -EROFS;
-        if (instr->addr >= mtd->size)
-                return -EINVAL;
         instr->addr += part->offset;
         ret = mtd_erase(part->master, instr);
         if (ret) {
@@ -277,24 +259,18 @@ EXPORT_SYMBOL_GPL(mtd_erase_callback);
 static int part_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
         struct mtd_part *part = PART(mtd);
-        if ((len + ofs) > mtd->size)
-                return -EINVAL;
         return mtd_lock(part->master, ofs + part->offset, len);
 }
 
 static int part_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
         struct mtd_part *part = PART(mtd);
-        if ((len + ofs) > mtd->size)
-                return -EINVAL;
         return mtd_unlock(part->master, ofs + part->offset, len);
 }
 
 static int part_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
         struct mtd_part *part = PART(mtd);
-        if ((len + ofs) > mtd->size)
-                return -EINVAL;
         return mtd_is_locked(part->master, ofs + part->offset, len);
 }
 
@@ -319,8 +295,6 @@ static void part_resume(struct mtd_info *mtd)
 static int part_block_isbad(struct mtd_info *mtd, loff_t ofs)
 {
         struct mtd_part *part = PART(mtd);
-        if (ofs >= mtd->size)
-                return -EINVAL;
         ofs += part->offset;
         return mtd_block_isbad(part->master, ofs);
 }
@@ -332,8 +306,6 @@ static int part_block_markbad(struct mtd_info *mtd, loff_t ofs)
 
         if (!(mtd->flags & MTD_WRITEABLE))
                 return -EROFS;
-        if (ofs >= mtd->size)
-                return -EINVAL;
         ofs += part->offset;
         res = mtd_block_markbad(part->master, ofs);
         if (!res)