On Sat, Mar 23, 2019 at 09:55:46AM -0400, Pierre-Louis Bossart wrote: > I'd like to highlight that there is a fundamental flaw in the way the > machine drivers are handled. Since we don't have a hook for the machine > driver in the BIOS, the DSP driver creates a platform_device which will > instantiate the machine driver. When errors happen in the machine driver > probe, they are suppressed due to a 'feature' of the device model, so you > can end-up with a broken configuration that is still reported as a > successful strobe. These are driver specific issues not device model issues as far as I can see? The issue fixed by this as is that you're storing a pointer in the ASoC level (not device model level) probe that you don't free when the component is unbound, causing you to dereference it later during suspend. There is absolutely no problem with the machine driver not being guaranteed to bind at the time it's initially registered, that's perfectly normal and should cause no problems.
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