[MTD] OneNAND: Error message printing and bad block scan erros
Provide the bad block scan with its own read function so that important error
messages that are not from the the bad block scan, can always be printed.
Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
diff --git a/drivers/mtd/onenand/onenand_bbt.c b/drivers/mtd/onenand/onenand_bbt.c
index acea9a1..aecdd50 100644
--- a/drivers/mtd/onenand/onenand_bbt.c
+++ b/drivers/mtd/onenand/onenand_bbt.c
@@ -17,8 +17,8 @@
#include <linux/mtd/onenand.h>
#include <linux/mtd/compatmac.h>
-extern int onenand_do_read_oob(struct mtd_info *mtd, loff_t from, size_t len,
- size_t *retlen, u_char *buf, mtd_oob_mode_t mode);
+extern int onenand_bbt_read_oob(struct mtd_info *mtd, loff_t from,
+ struct mtd_oob_ops *ops);
/**
* check_short_pattern - [GENERIC] check if a pattern is in the buffer
@@ -65,6 +65,7 @@
int startblock;
loff_t from;
size_t readlen, ooblen;
+ struct mtd_oob_ops ops;
printk(KERN_INFO "Scanning device for bad blocks\n");
@@ -82,22 +83,24 @@
startblock = 0;
from = 0;
+ ops.mode = MTD_OOB_PLACE;
+ ops.ooblen = readlen;
+ ops.oobbuf = buf;
+ ops.len = ops.ooboffs = ops.retlen = ops.oobretlen = 0;
+
for (i = startblock; i < numblocks; ) {
int ret;
for (j = 0; j < len; j++) {
- size_t retlen;
-
/* No need to read pages fully,
* just read required OOB bytes */
- ret = onenand_do_read_oob(mtd, from + j * mtd->writesize + bd->offs,
- readlen, &retlen, &buf[0], MTD_OOB_PLACE);
+ ret = onenand_bbt_read_oob(mtd, from + j * mtd->writesize + bd->offs, &ops);
/* If it is a initial bad block, just ignore it */
- if (ret && !(ret & ONENAND_CTRL_LOAD))
- return ret;
+ if (ret == ONENAND_BBT_READ_FATAL_ERROR)
+ return -EIO;
- if (check_short_pattern(&buf[j * scanlen], scanlen, mtd->writesize, bd)) {
+ if (ret || check_short_pattern(&buf[j * scanlen], scanlen, mtd->writesize, bd)) {
bbm->bbt[i >> 3] |= 0x03 << (i & 0x6);
printk(KERN_WARNING "Bad eraseblock %d at 0x%08x\n",
i >> 1, (unsigned int) from);