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Commit 2913aae5 authored by Ted Juan's avatar Ted Juan Committed by Brian Norris
Browse files

mtd: nand: omap: fix omap_calculate_ecc_bch() for-loop error 



 Fixes:  2c9f2365
 mtd: nand: omap: ecc.calculate: merge omap3_calculate_ecc_bch4 in omap_calculate_ecc_bch

 Fixes: 7bcd1dca
 mtd: nand: omap: ecc.calculate: merge omap3_calculate_ecc_bch8 in omap_calculate_ecc_bch

Cc: <stable@vger.kernel.org> # 3.13.x+
Signed-off-by: default avatarTed Juan <ted.juan@gmail.com>
Acked-by: default avatarPekon Gupta <pekon@ti.com>
Signed-off-by: default avatarBrian Norris <computersforpeace@gmail.com>
parent ab7f6fce

drivers/mtd/nand/omap2.c

+5 −5
Original line number Diff line number Diff line
@@ -1180,7 +1180,7 @@ static int __maybe_unused omap_calculate_ecc_bch(struct mtd_info *mtd, 
	u8 *ecc_code;

	unsigned long nsectors, bch_val1, bch_val2, bch_val3, bch_val4;

	u32 val;

	int i;

	int i, j;



	nsectors = ((readl(info->reg.gpmc_ecc_config) >> 4) & 0x7) + 1;

	for (i = 0; i < nsectors; i++) {
@@ -1263,8 +1263,8 @@ static int __maybe_unused omap_calculate_ecc_bch(struct mtd_info *mtd, 
		case OMAP_ECC_BCH4_CODE_HW_DETECTION_SW:

			/* Add constant polynomial to remainder, so that

			 * ECC of blank pages results in 0x0 on reading back */

			for (i = 0; i < eccbytes; i++)

				ecc_calc[i] ^= bch4_polynomial[i];

			for (j = 0; j < eccbytes; j++)

				ecc_calc[j] ^= bch4_polynomial[j];

			break;

		case OMAP_ECC_BCH4_CODE_HW:

			/* Set  8th ECC byte as 0x0 for ROM compatibility */
@@ -1273,8 +1273,8 @@ static int __maybe_unused omap_calculate_ecc_bch(struct mtd_info *mtd, 
		case OMAP_ECC_BCH8_CODE_HW_DETECTION_SW:

			/* Add constant polynomial to remainder, so that

			 * ECC of blank pages results in 0x0 on reading back */

			for (i = 0; i < eccbytes; i++)

				ecc_calc[i] ^= bch8_polynomial[i];

			for (j = 0; j < eccbytes; j++)

				ecc_calc[j] ^= bch8_polynomial[j];

			break;

		case OMAP_ECC_BCH8_CODE_HW:

			/* Set 14th ECC byte as 0x0 for ROM compatibility */