[coreboot-gerrit] Change in coreboot[master]: drivers/spi: Use 64 bits in multiplication

[Jacob Garber (Code Review)]

Jacob Garber has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/34373 )

Change subject: drivers/spi: Use 64 bits in multiplication
......................................................................

drivers/spi: Use 64 bits in multiplication

speed is a 64 bit variable, so use 64 bits in the intermediate calculations
to avoid possible overflow.

Change-Id: Id36eda6d64057cde4750184d03c9701011edb890
Signed-off-by: Jacob Garber 
Found-by: Coverity CID 1402094
---
M src/drivers/spi/cbfs_spi.c
1 file changed, 1 insertion(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/73/34373/1

diff --git a/src/drivers/spi/cbfs_spi.c b/src/drivers/spi/cbfs_spi.c
index ad282c6..9437c2e 100644
--- a/src/drivers/spi/cbfs_spi.c
+++ b/src/drivers/spi/cbfs_spi.c
@@ -55,7 +55,7 @@
    	u64 speed;	/* KiB/s */
    	int bps;	/* Bits per second */

-		speed = size * 1000 / usecs;
+		speed = size * 1000ULL / usecs;
    	bps = speed * 8;

printk(BIOS_DEBUG, "read SPI %#zx %#zx: %ld us, %lld KB/s, %d.%03d Mbps\n",