From: "huijin.park" huijin.park@samsung.com
[ Upstream commit 84a1c2109d23df3543d96231c4fee1757299bb1a ]
The "params->size" is defined as "u64". And "info->sector_size" and "info->n_sectors" are defined as unsigned int and u16. Thus, u64 data might have strange data(loss data) if the result overflows an unsigned int. This patch casts "info->sector_size" to an u64.
Signed-off-by: huijin.park huijin.park@samsung.com Reviewed-by: Geert Uytterhoeven geert+renesas@glider.be Signed-off-by: Boris Brezillon boris.brezillon@bootlin.com Signed-off-by: Lee Jones lee.jones@linaro.org --- drivers/mtd/spi-nor/spi-nor.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index 6c013341ef09..d550148177a0 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -2382,7 +2382,7 @@ static int spi_nor_init_params(struct spi_nor *nor, memset(params, 0, sizeof(*params));
/* Set SPI NOR sizes. */ - params->size = info->sector_size * info->n_sectors; + params->size = (u64)info->sector_size * info->n_sectors; params->page_size = info->page_size;
/* (Fast) Read settings. */