- patches.arch/x86_mce_intel_decode_physical_address.patch:

[linux-flexiantxendom0-3.2.10.git] / drivers / mtd / nand / nand_bbt.c

diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index 55c23e5..ad97c0c 100644 (file)
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -237,15 +237,33 @@ static int scan_read_raw(struct mtd_info *mtd, uint8_t *buf, loff_t offs,
                         size_t len)
 {
        struct mtd_oob_ops ops;
+       int res;
 
        ops.mode = MTD_OOB_RAW;
        ops.ooboffs = 0;
        ops.ooblen = mtd->oobsize;
-       ops.oobbuf = buf;
-       ops.datbuf = buf;
-       ops.len = len;
 
-       return mtd->read_oob(mtd, offs, &ops);
+
+       while (len > 0) {
+               if (len <= mtd->writesize) {
+                       ops.oobbuf = buf + len;
+                       ops.datbuf = buf;
+                       ops.len = len;
+                       return mtd->read_oob(mtd, offs, &ops);
+               } else {
+                       ops.oobbuf = buf + mtd->writesize;
+                       ops.datbuf = buf;
+                       ops.len = mtd->writesize;
+                       res = mtd->read_oob(mtd, offs, &ops);
+
+                       if (res)
+                               return res;
+               }
+
+               buf += mtd->oobsize + mtd->writesize;
+               len -= mtd->writesize;
+       }
+       return 0;
 }
 
 /*
@@ -414,6 +432,9 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
                from = (loff_t)startblock << (this->bbt_erase_shift - 1);
        }
 
+       if (this->options & NAND_BB_LAST_PAGE)
+               from += mtd->erasesize - (mtd->writesize * len);
+
        for (i = startblock; i < numblocks;) {
                int ret;