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-rw-r--r--src/drivers/spi/cbfs_spi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/drivers/spi/cbfs_spi.c b/src/drivers/spi/cbfs_spi.c
index fca61004ff..c68b9061f8 100644
--- a/src/drivers/spi/cbfs_spi.c
+++ b/src/drivers/spi/cbfs_spi.c
@@ -53,7 +53,7 @@ static ssize_t spi_readat(const struct region_device *rd, void *b,
u64 speed; /* KiB/s */
int bps; /* Bits per second */
- speed = size * 1000 / usecs;
+ speed = size * (u64)1000 / usecs;
bps = speed * 8;
printk(BIOS_DEBUG, "read SPI %#zx %#zx: %ld us, %lld KB/s, %d.%03d Mbps\n",