[PATCH] ALSA: hda: fix NULL pointer dereference during suspend

[Mark Brown]

On Wed, Jul 29, 2020 at 09:48:08AM +0200, Takashi Iwai wrote:

> The code changes look OK to apply, but I still wonder how the runtime
> PM gets invoked even if the device is not instantiated properly?

The components are registered and active at the device model level even
if they never get incorporated into a card.
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