Oops, minor correction

panda/src/display/graphicsOutput.cxx

@@ -837,8 +837,10 @@ make_texture_buffer(const string &name, int x_size, int y_size,
                 *fbp, WindowProperties::size(x_size, y_size),
                 flags, get_gsg(), get_host());
 
-  if (buffer != (GraphicsOutput *)NULL && tex != (Texture *)NULL) {
-    buffer->add_render_texture(tex, to_ram ? RTM_copy_ram : RTM_bind_or_copy);
+  if (buffer != (GraphicsOutput *)NULL) {
+    if (tex != (Texture *)NULL) {
+      buffer->add_render_texture(tex, to_ram ? RTM_copy_ram : RTM_bind_or_copy);
+    }
     return buffer;
   }