[v6 02/12] test: Adjust print_ut test to use unsigned char

[Tom Rini <trini@konsulko.com>]

From: Simon Glass <sjg@chromium.org>

Since char is unsigned on arm64, this test currently fails. It seems
better to use unsigned anyway, since 0xff is written into the string at
the start. Update the terminator-assert to use a character instead of a
byte.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

Changes in v6:
- Re-introduce

Changes in v2:
- Use '\0' instead of 0

 test/print_ut.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
---
 test/common/print.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/test/common/print.c b/test/common/print.c
index 464e425edee5..e3711b108091 100644
--- a/test/common/print.c
+++ b/test/common/print.c
@@ -241,7 +241,7 @@ COMMON_TEST(print_display_buffer, UTF_CONSOLE);
 
 static int print_hexdump_line(struct unit_test_state *uts)
 {
-	char *linebuf;
+	u8 *linebuf;
 	u8 *buf;
 	int i;
 
@@ -254,10 +254,10 @@ static int print_hexdump_line(struct unit_test_state *uts)
 	linebuf = map_sysmem(0x400, BUF_SIZE);
 	memset(linebuf, '\xff', BUF_SIZE);
 	ut_asserteq(-ENOSPC, hexdump_line(0, buf, 1, 0x10, 0, linebuf, 75));
-	ut_asserteq(-1, linebuf[0]);
+	ut_asserteq(0xff, linebuf[0]);
 	ut_asserteq(0x10, hexdump_line(0, buf, 1, 0x10, 0, linebuf, 76));
-	ut_asserteq(0, linebuf[75]);
-	ut_asserteq(-1, linebuf[76]);
+	ut_asserteq('\0', linebuf[75]);
+	ut_asserteq(0xff, linebuf[76]);
 
 	unmap_sysmem(buf);
 
-- 
2.43.0