[util] Minor

util/hb-subset.cc

@@ -73,7 +73,7 @@ struct subset_consumer_t
       fprintf(stderr, "Unable to open output file\n");
       return false;
     }
-    size_t bytes_written = fwrite(data, 1, data_length, fp_out);
+    ssize_t bytes_written = fwrite(data, 1, data_length, fp_out);
 
     if (bytes_written == -1) {
       fprintf(stderr, "Unable to write output file\n");

util/options.hh

@@ -240,19 +240,25 @@ struct shape_options_t : option_group_t
     {
       if (error)
         *error = "all shapers failed.";
-      return false;
+      goto fail;
     }
 
     if (normalize_glyphs)
       hb_buffer_normalize_glyphs (buffer);
 
     if (verify && !verify_buffer (buffer, text_buffer, font, error))
-      return false;
+      goto fail;
 
     if (text_buffer)
       hb_buffer_destroy (text_buffer);
 
     return true;
+
+  fail:
+    if (text_buffer)
+      hb_buffer_destroy (text_buffer);
+
+    return false;
   }
 
   bool verify_buffer (hb_buffer_t  *buffer,