From bac9d17dbc5bedf737777875826cbaa03b74778b Mon Sep 17 00:00:00 2001
From: StekiKun <steki.kun@gmail.com>
Date: Sat, 16 Jul 2022 12:20:26 +0200
Subject: [PATCH] Fix display of hex char literals in device tree source format

The format specifier PRIx8 for unsigned integers was used with a
signed character, yielding unexpected results with values >= 0x7F.
---
 treesource.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/treesource.c b/treesource.c
index 33fedee..b9504bc 100644
--- a/treesource.c
+++ b/treesource.c
@@ -93,7 +93,7 @@ static void write_propval_string(FILE *f, const char *s, size_t len)
 			if (isprint((unsigned char)c))
 				fprintf(f, "%c", c);
 			else
-				fprintf(f, "\\x%02"PRIx8, c);
+				fprintf(f, "\\x%02"PRIx8, (unsigned char)c);
 		}
 	}
 	fprintf(f, "\"");