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[05/13] imx: nandbcb: Fix potential overflow in fill_dbbt_data

Message ID 20210114072810.11873-5-peng.fan@oss.nxp.com
State Accepted
Commit 983f5e03919ff10118a6c63358fed29d17497f0a
Delegated to: Stefano Babic
Headers show
Series [01/13] imx: lowlevel: implement armv8_el2_to_aarch32 | expand

Commit Message

Peng Fan (OSS) Jan. 14, 2021, 7:28 a.m. UTC 
From: Ye Li <ye.li@nxp.com>

Fix Coverity Issue 9006658. In fill_dbbt_data, an integer overflow occurs,
with the result converted to a wider integer type

Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm/mach-imx/cmd_nandbcb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/arch/arm/mach-imx/cmd_nandbcb.c b/arch/arm/mach-imx/cmd_nandbcb.c
index 836981c895..ea4e147da8 100644
--- a/arch/arm/mach-imx/cmd_nandbcb.c
+++ b/arch/arm/mach-imx/cmd_nandbcb.c
@@ -476,7 +476,7 @@  static int fill_dbbt_data(struct mtd_info *mtd, void *buf, int num_blocks)
 	u32 *n_bad_blocksp = buf + 0x4;
 
 	for (n = 0; n < num_blocks; n++) {
-		loff_t offset = n * mtd->erasesize;
+		loff_t offset = (loff_t)n * mtd->erasesize;
 			if (mtd_block_isbad(mtd, offset)) {
 				n_bad_blocks++;
 				*bb = n;