diff options
Diffstat (limited to 'drivers/mtd/devices/phram.c')
| -rw-r--r-- | drivers/mtd/devices/phram.c | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c index 38035551a7d..36add7ce463 100644 --- a/drivers/mtd/devices/phram.c +++ b/drivers/mtd/devices/phram.c @@ -38,29 +38,20 @@ static int phram_erase(struct mtd_info *mtd, struct erase_info *instr) { u_char *start = mtd->priv; - if (instr->addr + instr->len > mtd->size) - return -EINVAL; - memset(start + instr->addr, 0xff, instr->len); /* This'll catch a few races. Free the thing before returning :) * I don't feel at all ashamed. This kind of thing is possible anyway * with flash, but unlikely. */ - instr->state = MTD_ERASE_DONE; - mtd_erase_callback(instr); - return 0; } static int phram_point(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, void **virt, resource_size_t *phys) { - if (from + len > mtd->size) - return -EINVAL; - /* can we return a physical address with this driver? */ if (phys) return -EINVAL; @@ -80,14 +71,7 @@ static int phram_read(struct mtd_info *mtd, loff_t from, size_t len, { u_char *start = mtd->priv; - if (from >= mtd->size) - return -EINVAL; - - if (len > mtd->size - from) - len = mtd->size - from; - memcpy(buf, start + from, len); - *retlen = len; return 0; } @@ -97,14 +81,7 @@ static int phram_write(struct mtd_info *mtd, loff_t to, size_t len, { u_char *start = mtd->priv; - if (to >= mtd->size) - return -EINVAL; - - if (len > mtd->size - to) - len = mtd->size - to; - memcpy(start + to, buf, len); - *retlen = len; return 0; } |