[PATCH RESEND v2] drm/vc4: fix infinite EPROBE_DEFER loop

[Maxime Ripard]

On Sun, 01 Jun 2025 12:45:36 -0400, Gabriel Dalimonte wrote:
> `vc4_hdmi_audio_init` calls `devm_snd_dmaengine_pcm_register` which may
> return EPROBE_DEFER. Calling `drm_connector_hdmi_audio_init` adds a
> child device. The driver model docs[1] state that adding a child device
> prior to returning EPROBE_DEFER may result in an infinite loop.
> 
> [1] https://www.kernel.org/doc/html/v6.14/driver-api/driver-model/driver.html
> 
> [...]

Applied to misc/kernel.git (drm-misc-fixes).

Thanks!
Maxime