nvramtool: Fix CMOS checksum to match coreboot (and /dev/nvram)
Change-Id: I28b0dbad36403a31be83581107f40b3ca1332dcc
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/287
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
diff --git a/util/nvramtool/cmos_ops.c b/util/nvramtool/cmos_ops.c
index 2bbc8a1..91c9f45 100644
--- a/util/nvramtool/cmos_ops.c
+++ b/util/nvramtool/cmos_ops.c
@@ -210,7 +210,7 @@
for (i = cmos_checksum_start; i <= cmos_checksum_end; i++)
sum += cmos_read_byte(i);
- return ~((uint16_t) (sum & 0xffff));
+ return (uint16_t)(sum & 0xffff);
}
/****************************************************************************