[MTD] [NAND] nand_base.c: fix type of eccpos pointer

The nand_base.c driver implicitly casts the uint32_t
eccpos array to 'int *', which is not only not guaranteed
to be the same sign as the source, but is not guaranteed
to be the same size.

Fix by changing nand_base.c to use uint32_t
referencing the eccpos fields.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>

drivers/mtd/nand/nand_base.c

@@ -772,7 +772,7 @@ static int nand_read_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
 	uint8_t *p = buf;
 	uint8_t *ecc_calc = chip->buffers->ecccalc;
 	uint8_t *ecc_code = chip->buffers->ecccode;
-	int *eccpos = chip->ecc.layout->eccpos;
+	uint32_t *eccpos = chip->ecc.layout->eccpos;
 
 	chip->ecc.read_page_raw(mtd, chip, buf);
 
@@ -814,7 +814,7 @@ static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
 	uint8_t *p = buf;
 	uint8_t *ecc_calc = chip->buffers->ecccalc;
 	uint8_t *ecc_code = chip->buffers->ecccode;
-	int *eccpos = chip->ecc.layout->eccpos;
+	uint32_t *eccpos = chip->ecc.layout->eccpos;
 
 	for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
 		chip->ecc.hwctl(mtd, NAND_ECC_READ);
@@ -1420,7 +1420,7 @@ static void nand_write_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
 	int eccsteps = chip->ecc.steps;
 	uint8_t *ecc_calc = chip->buffers->ecccalc;
 	const uint8_t *p = buf;
-	int *eccpos = chip->ecc.layout->eccpos;
+	uint32_t *eccpos = chip->ecc.layout->eccpos;
 
 	/* Software ecc calculation */
 	for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize)
@@ -1446,7 +1446,7 @@ static void nand_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
 	int eccsteps = chip->ecc.steps;
 	uint8_t *ecc_calc = chip->buffers->ecccalc;
 	const uint8_t *p = buf;
-	int *eccpos = chip->ecc.layout->eccpos;
+	uint32_t *eccpos = chip->ecc.layout->eccpos;
 
 	for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
 		chip->ecc.hwctl(mtd, NAND_ECC_WRITE);