utf: Add missing return for invalid UTF-8

1 files changed, 2 insertions, 0 deletions

diff --git a/utf.c b/utf.c
index e399e99..b012184 100644
--- a/utf.c
+++ b/utf.c
@@ -51,6 +51,8 @@ utf8dec(const char *s, size_t n, uint_least32_t *c)
 	} else if ((b & 0xf8) == 0xf0) {
 		x = b & 0x07;
 		l = 4;
+	} else {
+		return -1;
 	}
 	if (n < l)
 		return -1;