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Subject[LINUX PATCH v18 1/2] mtd: rawnand: nand_micron: Do not over write driver's read_page()/write_page()
Date
Add check before assigning chip->ecc.read_page() and chip->ecc.write_page()

Signed-off-by: Naga Sureshkumar Relli <naga.sureshkumar.relli@xilinx.com>
---
Changes in v18
- None
---
drivers/mtd/nand/raw/nand_micron.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/nand/raw/nand_micron.c b/drivers/mtd/nand/raw/nand_micron.c
index cbd4f09ac178..565f2696c747 100644
--- a/drivers/mtd/nand/raw/nand_micron.c
+++ b/drivers/mtd/nand/raw/nand_micron.c
@@ -500,8 +500,11 @@ static int micron_nand_init(struct nand_chip *chip)
chip->ecc.size = 512;
chip->ecc.strength = chip->base.eccreq.strength;
chip->ecc.algo = NAND_ECC_BCH;
- chip->ecc.read_page = micron_nand_read_page_on_die_ecc;
- chip->ecc.write_page = micron_nand_write_page_on_die_ecc;
+ if (!chip->ecc.read_page)
+ chip->ecc.read_page = micron_nand_read_page_on_die_ecc;
+
+ if (!chip->ecc.write_page)
+ chip->ecc.write_page = micron_nand_write_page_on_die_ecc;

if (ondie == MICRON_ON_DIE_MANDATORY) {
chip->ecc.read_page_raw = nand_read_page_raw_notsupp;
--
2.17.1
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