[alsa-devel] [PATCH] ASoC: rsnd: stop all working stream when .remove

[Kuninori Morimoto]

Hi Takashi-san

Thank you for your feedback

> This isn't something you shouldn't fiddle with the codec layer.
> If the driver gets removed during the operation, you have to cancel 
> the operation and sync with it in a proper way, then proceed the rest 
> of the remove, not only a codec-specific resource management.
(snip)
> Here I mentioned the codec driver, but it's applied to each lower-level
> component.  It'd need some graceful way to communicate with the
> top-level card to assure the removal of the component.

I agree.
I can't access to source code now (I'm in business-trip), but my head-acke is that kernel doesn't check return value from .remove when unbind case.
Thus, we can't "cancel" remove operation.
I'm happy if you can confirm it.