qga: free the whole blacklist

Free the config blacklist list, not just the elements. Do it so in the
more appropriate function config_free().

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>

qga/main.c

@@ -1175,6 +1175,7 @@ static void config_free(GAConfig *config)
 #ifdef CONFIG_FSFREEZE
     g_free(config->fsfreeze_hook);
 #endif
+    g_list_free_full(config->blacklist, g_free);
     g_free(config);
 }
 
@@ -1310,11 +1311,6 @@ static int run_agent(GAState *s, GAConfig *config)
     return EXIT_SUCCESS;
 }
 
-static void free_blacklist_entry(gpointer entry, gpointer unused)
-{
-    g_free(entry);
-}
-
 int main(int argc, char **argv)
 {
     int ret = EXIT_SUCCESS;
@@ -1379,7 +1375,6 @@ int main(int argc, char **argv)
     if (s->channel) {
         ga_channel_free(s->channel);
     }
-    g_list_foreach(config->blacklist, free_blacklist_entry, NULL);
     g_free(s->pstate_filepath);
     g_free(s->state_filepath_isfrozen);