[MTD] OneNAND: fix onenand_wait bug in read ecc error

Even though there is ECC error. OneNAND driver updates the buffram as valid

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 0037cee5ef2752f8d51bec8eecdc109b4fa7fbfa..e80857b3bb83dde457e93961016ae60f8a657027 100644 (file)
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -298,7 +298,7 @@ static int onenand_wait(struct mtd_info *mtd, int state)
        unsigned long timeout;
        unsigned int flags = ONENAND_INT_MASTER;
        unsigned int interrupt = 0;
-       unsigned int ctrl, ecc;
+       unsigned int ctrl;
 
        /* The 20 msec is enough */
        timeout = jiffies + msecs_to_jiffies(20);
@@ -324,7 +324,7 @@ static int onenand_wait(struct mtd_info *mtd, int state)
        }
 
        if (interrupt & ONENAND_INT_READ) {
-               ecc = this->read_word(this->base + ONENAND_REG_ECC_STATUS);
+               int ecc = this->read_word(this->base + ONENAND_REG_ECC_STATUS);
                if (ecc) {
                        DEBUG(MTD_DEBUG_LEVEL0, "onenand_wait: ECC error = 0x%04x\n", ecc);
                        if (ecc & ONENAND_ECC_2BIT_ALL)
@@ -332,6 +332,7 @@ static int onenand_wait(struct mtd_info *mtd, int state)
                        else if (ecc & ONENAND_ECC_1BIT_ALL)
                                mtd->ecc_stats.corrected++;
                }
+               return ecc;
        }
 
        return 0;