Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=91014e9bfaaac32ab46ab46251d774468891bafe
Commit: 91014e9bfaaac32ab46ab46251d774468891bafe
Parent: 74641d75275936796d239f828b80cb030e9f9b0a
Author: Kyungmin Park <[EMAIL PROTECTED]>
AuthorDate: Mon Feb 12 10:34:39 2007 +0900
Committer: David Woodhouse <[EMAIL PROTECTED]>
CommitDate: Fri Mar 9 08:04:25 2007 +0000
[MTD] [OneNAND] Use oob buffer instead of main one in oob functions
In oob functions, it is used main buffer instead of oob one. So fix it.
Signed-off-by: Kyungmin Park <[EMAIL PROTECTED]>
Signed-off-by: David Woodhouse <[EMAIL PROTECTED]>
---
drivers/mtd/onenand/onenand_base.c | 23 +++++++++++++----------
1 files changed, 13 insertions(+), 10 deletions(-)
diff --git a/drivers/mtd/onenand/onenand_base.c
b/drivers/mtd/onenand/onenand_base.c
index 621c3f8..8006d51 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -1093,7 +1093,7 @@ int onenand_bbt_read_oob(struct mtd_info *mtd, loff_t
from,
static int onenand_verify_oob(struct mtd_info *mtd, const u_char *buf, loff_t
to)
{
struct onenand_chip *this = mtd->priv;
- char *readp = this->page_buf + mtd->writesize;
+ char oobbuf[64];
int status, i;
this->command(mtd, ONENAND_CMD_READOOB, to, mtd->oobsize);
@@ -1102,9 +1102,9 @@ static int onenand_verify_oob(struct mtd_info *mtd, const
u_char *buf, loff_t to
if (status)
return status;
- this->read_bufferram(mtd, ONENAND_SPARERAM, readp, 0, mtd->oobsize);
- for(i = 0; i < mtd->oobsize; i++)
- if (buf[i] != 0xFF && buf[i] != readp[i])
+ this->read_bufferram(mtd, ONENAND_SPARERAM, oobbuf, 0, mtd->oobsize);
+ for (i = 0; i < mtd->oobsize; i++)
+ if (buf[i] != 0xFF && buf[i] != oobbuf[i])
return -EBADMSG;
return 0;
@@ -1312,6 +1312,7 @@ static int onenand_do_write_oob(struct mtd_info *mtd,
loff_t to, size_t len,
struct onenand_chip *this = mtd->priv;
int column, ret = 0, oobsize;
int written = 0;
+ u_char *oobbuf;
DEBUG(MTD_DEBUG_LEVEL3, "onenand_write_oob: to = 0x%08x, len = %i\n",
(unsigned int) to, (int) len);
@@ -1331,7 +1332,7 @@ static int onenand_do_write_oob(struct mtd_info *mtd,
loff_t to, size_t len,
}
/* For compatibility with NAND: Do not allow write past end of page */
- if (column + len > oobsize) {
+ if (unlikely(column + len > oobsize)) {
printk(KERN_ERR "onenand_write_oob: "
"Attempt to write past end of page\n");
return -EINVAL;
@@ -1348,6 +1349,8 @@ static int onenand_do_write_oob(struct mtd_info *mtd,
loff_t to, size_t len,
/* Grab the lock and see if the device is available */
onenand_get_device(mtd, FL_WRITING);
+ oobbuf = this->page_buf + mtd->writesize;
+
/* Loop until all data write */
while (written < len) {
int thislen = min_t(int, oobsize, len - written);
@@ -1358,12 +1361,12 @@ static int onenand_do_write_oob(struct mtd_info *mtd,
loff_t to, size_t len,
/* We send data to spare ram with oobsize
* to prevent byte access */
- memset(this->page_buf, 0xff, mtd->oobsize);
+ memset(oobbuf, 0xff, mtd->oobsize);
if (mode == MTD_OOB_AUTO)
- onenand_fill_auto_oob(mtd, this->page_buf, buf, column,
thislen);
+ onenand_fill_auto_oob(mtd, oobbuf, buf, column,
thislen);
else
- memcpy(this->page_buf + column, buf, thislen);
- this->write_bufferram(mtd, ONENAND_SPARERAM, this->page_buf, 0,
mtd->oobsize);
+ memcpy(oobbuf + column, buf, thislen);
+ this->write_bufferram(mtd, ONENAND_SPARERAM, oobbuf, 0,
mtd->oobsize);
this->command(mtd, ONENAND_CMD_PROGOOB, to, mtd->oobsize);
@@ -1375,7 +1378,7 @@ static int onenand_do_write_oob(struct mtd_info *mtd,
loff_t to, size_t len,
break;
}
- ret = onenand_verify_oob(mtd, this->page_buf, to);
+ ret = onenand_verify_oob(mtd, oobbuf, to);
if (ret) {
printk(KERN_ERR "onenand_write_oob: verify failed
%d\n", ret);
break;
-
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