unsigned constants

diff --git a/lib/dns/zone.c b/lib/dns/zone.c
index 4a8cb60f2c8d70df40b9351f3ee9b82ccbfb4397..5dd0b76a02a60800bd08e79123f945954bd4573b 100644 (file)
--- a/lib/dns/zone.c
+++ b/lib/dns/zone.c
@@ -16062,7 +16062,7 @@ dns_zone_keydone(dns_zone_t *zone, const char *keystr) {
                kd->all = ISC_FALSE;
 
                n = sscanf(keystr, "%hd/", &keyid);
-               if (n == 0)
+               if (n == 0U)
                        CHECK(ISC_R_FAILURE);
 
                algstr = strchr(keystr, '/');
@@ -16072,7 +16072,7 @@ dns_zone_keydone(dns_zone_t *zone, const char *keystr) {
                        CHECK(ISC_R_FAILURE);
 
                n = sscanf(algstr, "%hhd", &alg);
-               if (n == 0) {
+               if (n == 0U) {
                        DE_CONST(algstr, r.base);
                        r.length = strlen(algstr);
                        CHECK(dns_secalg_fromtext(&alg, &r));