On Thu, 2016-03-17 at 09:54 +0000, Mark Brown wrote: > On Wed, Mar 16, 2016 at 07:17:51PM +0800, Harry Pan wrote: > > > Conflicts: > > sound/soc/soc-dapm.c > > Don't include noise like this in upstream submissions. > I learned, thanks. > > + if (!strcmp(cmpnt->name, "snd-soc-dummy")) > > + return 0; > > + > > This doesn't make much sense and is going to be very fragile. We > should either make the dummy component look like other components or > make the code cope with them as they stand, that way we don't have > random undocumented special cases scattered through the code. Probably > it's better to make the dummy component look like others. I do agree, basically. Allow me to explain more detail that I saw during debug; since the commit 6e78108bda78 (ASoC: core: Don't probe the component which is dummy), an exception has been made that dummy component won't be probed, thus the 'card' passed into soc_probe_component() would not be assigned to this component. In the other hand, the component struct is initially created in snd_soc_register_platform() by kzalloc() of platform struct, its 'card' pointer is remaining an NULL pointer even the widget node being read. Perhaps another option is to refine soc_probe_component(), which I have not dive in. Sincerely, Harry _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel