mtd: rawnand: sunxi: change error prone variable name

In sunxi_nand_hw_ecc_ctrl_init(), i is used as a loop index variable and
at the same time as the value used to set ECC mode in ECC control
register.
To prevent it from being re-used as a loop variable, let's change the
naming to ecc_mode.

No functional change.

Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

Author: richard-bootlin

drivers/mtd/nand/raw/sunxi_nand.c

@@ -1796,6 +1796,7 @@ static int sunxi_nand_hw_ecc_ctrl_init(struct nand_chip *nand,
 	struct mtd_info *mtd = nand_to_mtd(nand);
 	struct nand_device *nanddev = mtd_to_nanddev(mtd);
 	int nsectors;
+	int ecc_mode;
 	int i;
 
 	if (nanddev->ecc.user_conf.flags & NAND_ECC_MAXIMIZE_STRENGTH) {
@@ -1849,18 +1850,18 @@ static int sunxi_nand_hw_ecc_ctrl_init(struct nand_chip *nand,
 	}
 
 	/* Add ECC info retrieval from DT */
-	for (i = 0; i < nfc->caps->nstrengths; i++) {
-		if (ecc->strength <= strengths[i]) {
+	for (ecc_mode = 0; ecc_mode < nfc->caps->nstrengths; ecc_mode++) {
+		if (ecc->strength <= strengths[ecc_mode]) {
 			/*
 			 * Update ecc->strength value with the actual strength
 			 * that will be used by the ECC engine.
 			 */
-			ecc->strength = strengths[i];
+			ecc->strength = strengths[ecc_mode];
 			break;
 		}
 	}
 
-	if (i >= nfc->caps->nstrengths) {
+	if (ecc_mode >= nfc->caps->nstrengths) {
 		dev_err(nfc->dev, "unsupported strength\n");
 		return -ENOTSUPP;
 	}
@@ -1896,7 +1897,7 @@ static int sunxi_nand_hw_ecc_ctrl_init(struct nand_chip *nand,
 	ecc->read_oob_raw = nand_read_oob_std;
 	ecc->write_oob_raw = nand_write_oob_std;
 
-	sunxi_nand->ecc.ecc_ctl = NFC_ECC_MODE(nfc, i) | NFC_ECC_EXCEPTION |
+	sunxi_nand->ecc.ecc_ctl = NFC_ECC_MODE(nfc, ecc_mode) | NFC_ECC_EXCEPTION |
 				  NFC_ECC_PIPELINE | NFC_ECC_EN;
 
 	if (ecc->size == 512) {