Hi Takashi-san > > So, we can call snd_soc_unregister_card() whenever CPU/Codec/Platform > > were unregsiterd. > > In theory yes, but you should be careful to do so, e.g. make sure that > it won't be called again by the removal/unbind of other components / > drivers. > > I suggested snd_card_disconnect() because it doesn't release resources > by itself, but it just disconnects from the further accesses. So, > double-free won't happen in this case. It makes the hotunplug safer > as long as the drivers manage the resource releases properly. I had checked many unbind/bind pattern/order on 2nd [RFC] patch which I posted. At first, I believe Oops on unbind/bind issue was solved on it. 2nd, if my understanding was correct, it doesn't have double-free issue, or something like that. But, I'm not 100% sure about 2nd, thus it has [RFC] on patch. Best regards --- Kuninori Morimoto
