From 983f5e03919ff10118a6c63358fed29d17497f0a Mon Sep 17 00:00:00 2001 From: Ye Li Date: Sun, 2 Aug 2020 22:59:43 -0700 Subject: [PATCH] imx: nandbcb: Fix potential overflow in fill_dbbt_data 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 Reviewed-by: Peng Fan Signed-off-by: Peng Fan --- arch/arm/mach-imx/cmd_nandbcb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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; -- 2.39.5