[PATCH] mtd: nand: Fix build error while CONFIG_MTD_NAND_ECC_SW_BCH is set to module

[Yue Haibing]

From: YueHaibing <yuehaibing@xxxxxxxxxx>

Fix gcc build error while CONFIG_MTD_NAND_ECC_SW_BCH
is set to module:

drivers/mtd/nand/raw/nand_base.o: In function `nand_cleanup':
(.text+0xef6): undefined reference to `nand_bch_free'
drivers/mtd/nand/raw/nand_base.o: In function `nand_scan_tail':
nand_base.c:(.text+0xa101): undefined reference to `nand_bch_calculate_ecc'
nand_base.c:(.text+0xa120): undefined reference to `nand_bch_correct_data'
nand_base.c:(.text+0xa269): undefined reference to `nand_bch_init'

CONFIG_MTD_NAND_ECC_SW_BCH should not be set to M,
because MTD_RAW_NAND need it while linked.

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Fixes: 193bd4002644 ("mtd: nand: add software BCH ECC support"
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
 drivers/mtd/nand/raw/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig
index 615d738..0500c42 100644
--- a/drivers/mtd/nand/raw/Kconfig
+++ b/drivers/mtd/nand/raw/Kconfig
@@ -22,7 +22,7 @@ menuconfig MTD_RAW_NAND
 if MTD_RAW_NAND
 
 config MTD_NAND_ECC_SW_BCH
-	tristate "Support software BCH ECC"
+	bool "Support software BCH ECC"
 	select BCH
 	default n
 	help
-- 
2.7.4