mtd: nand: Use the mirror BBT descriptor when reading its version

commit 7bb9c75436212813b38700c34df4bbb6eb82debe upstream.

The code responsible for reading the version of the mirror bbt was
incorrectly using the descriptor of the main bbt.

Pass the mirror bbt descriptor to 'scan_read_raw' when reading the
version of the mirror bbt.

Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index 30d1319ff0657ce75b063023d9eee0c65d2f5873..c126469b06457d98e0826d094390ba91a3710d52 100644 (file)
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -390,7 +390,7 @@ static int read_abs_bbts(struct mtd_info *mtd, uint8_t *buf,
        /* Read the mirror version, if available */
        if (md && (md->options & NAND_BBT_VERSION)) {
                scan_read_raw(mtd, buf, (loff_t)md->pages[0] << this->page_shift,
-                             mtd->writesize, td);
+                             mtd->writesize, md);
                md->version[0] = buf[bbt_get_ver_offs(mtd, md)];
                pr_info("Bad block table at page %d, version 0x%02X\n",
                         md->pages[0], md->version[0]);