[MTD] OneNAND: Free the bad block table when the device is released

OneNAND does 2 memory allocations for bad block information.
Only one of them was being freed.

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_base.c b/drivers/mtd/onenand/onenand_base.c
index 0ade237..0249b4a 100644 (file)
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -2133,8 +2133,11 @@ void onenand_release(struct mtd_info *mtd)
        del_mtd_device (mtd);
 
        /* Free bad block table memory, if allocated */
-       if (this->bbm)
+       if (this->bbm) {
+               struct bbm_info *bbm = this->bbm;
+               kfree(bbm->bbt);
                kfree(this->bbm);
+       }
        /* Buffer allocated by onenand_scan */
        if (this->options & ONENAND_PAGEBUF_ALLOC)
                kfree(this->page_buf);

diff --git a/drivers/mtd/onenand/onenand_bbt.c b/drivers/mtd/onenand/onenand_bbt.c
index 98f8fd1..90db8f5 100644 (file)
--- a/drivers/mtd/onenand/onenand_bbt.c
+++ b/drivers/mtd/onenand/onenand_bbt.c
@@ -168,8 +168,8 @@ static int onenand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt)
  * marked good / bad blocks and writes the bad block table(s) to
  * the selected place.
  *
- * The bad block table memory is allocated here. It must be freed
- * by calling the onenand_free_bbt function.
+ * The bad block table memory is allocated here. It is freed
+ * by the onenand_release function.
  *
  */
 int onenand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)