[alsa-devel] [RFC][PATCH] ASoC: soc-core: verify Sound Card normality

[Mark Brown]

On Wed, Mar 29, 2017 at 02:45:37AM +0000, Kuninori Morimoto wrote:

> To avoid Sound Card crash in (2) case, what we can do now is, add dirty
> flag on Sound Card, and avoid to open Sound Card.
> This patch solved this issue.

I think this is a good direction to at least start to mitigate these
problems (which we really should be doing) and hopefully make it easier
to do further improvements in future.  There's obviously more places
where we should be checking the flag (controls for example) but they can
be added later.  One thing I would like to see is instead of setting the
flag directly when we see a problem call a function to do it.  That way
if we want to improve things in the future we can do that without having
to update the callers again.
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