[PATCH mtd-utils] nand-utils: fix integer overflow in nftldump.c

[Anton Moryakov]

Report of the static analyzer:
The value of an arithmetic expression 'i * meminfo.erasesize' is a subject to overflow because its operands are not cast to a larger data type before performing arithmetic

Corrections explained:
one of the operands was cast to a wider type, such as unsigned long long, to expand the range of possible values ​​and avoid overflow

Triggers found by static analyzer Svace.

Signed-off-by: Anton Moryakov <ant.v.moryakov at gmail.com>

---
 nand-utils/nftldump.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nand-utils/nftldump.c b/nand-utils/nftldump.c
index 30332fe..6964d2c 100644
--- a/nand-utils/nftldump.c
+++ b/nand-utils/nftldump.c
@@ -124,7 +124,7 @@ static void dump_erase_units(void)
 	for (i = MedHead[0].FirstPhysicalEUN; i < MedHead[0].FirstPhysicalEUN +
 			MedHead[0].NumEraseUnits; i++) {
 		/* For each Erase Unit */
-		ofs = i * meminfo.erasesize;
+		ofs = (unsigned long long)i * meminfo.erasesize;
 
 		/* read the Unit Control Information */
 		for (j = 0; j < 3; j++) {
-- 
2.30.2