diff --git a/libc/netbsd/resolv/res_cache.c b/libc/netbsd/resolv/res_cache.c
index efce7dc..e3ceb5a 100644
--- a/libc/netbsd/resolv/res_cache.c
+++ b/libc/netbsd/resolv/res_cache.c
@@ -1627,6 +1627,7 @@
         while (cache_info) {
             if (cache_info->ifname[0] != '\0') {
                 ifname = cache_info->ifname;
+                break;
             }
 
             cache_info = cache_info->next;
@@ -1684,6 +1685,7 @@
         while (cache_info) {
             if (cache_info->ifname[0] != '\0') {
                 ifname = cache_info->ifname;
+                break;
             }
 
             cache_info = cache_info->next;
@@ -1691,18 +1693,15 @@
     }
     struct resolv_cache* cache = _get_res_cache_for_iface_locked(ifname);
 
-    if (cache == NULL) {
-        pthread_mutex_unlock(&_res_cache_list_lock);
-        return;
+    if (cache != NULL) {
+        pthread_mutex_lock( &cache->lock );
+        if (cache->generation != generation) {
+            _cache_flush_locked(cache);
+            cache->generation = generation;
+        }
+        pthread_mutex_unlock( &cache->lock );
     }
 
-    pthread_mutex_lock( &cache->lock );
-    if (cache->generation != generation) {
-        _cache_flush_locked(cache);
-        cache->generation = generation;
-    }
-    pthread_mutex_unlock( &cache->lock );
-
     pthread_mutex_unlock(&_res_cache_list_lock);
 }
 
@@ -1860,8 +1859,10 @@
     for (i = 0; i <= MAXNS; i++) {
         free(cache_info->nameservers[i]);
         cache_info->nameservers[i] = NULL;
-        freeaddrinfo(cache_info->nsaddrinfo[i]);
-        cache_info->nsaddrinfo[i] = NULL;
+        if (cache_info->nsaddrinfo[i] != NULL) {
+            freeaddrinfo(cache_info->nsaddrinfo[i]);
+            cache_info->nsaddrinfo[i] = NULL;
+        }
     }
 }