Fix -Wsign-compare trouble

Mostly by changing to `unsigned` types where applicable, sometimes
`signed` types, and casting as a last resort.

Change-Id: I08895543ffb7a48058bcf91ef6500ca113f2d305
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/30409
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jacob Garber <jgarber1@ualberta.ca>

1 files changed, 1 insertions, 1 deletions

diff --git a/flashrom.c b/flashrom.c
index cb1dca6d..06b18545 100644
--- a/flashrom.c
+++ b/flashrom.c
@@ -1253,7 +1253,7 @@ int read_buf_from_file(unsigned char *buf, unsigned long size,
 		ret = 1;
 		goto out;
 	}
-	if (image_stat.st_size != size) {
+	if (image_stat.st_size != (intmax_t)size) {
 		msg_gerr("Error: Image size (%jd B) doesn't match the flash chip's size (%lu B)!\n",
 			 (intmax_t)image_stat.st_size, size);
 		ret = 1;