On Mon, 2019-06-17 at 13:36 +0200, Amadeusz Sławiński wrote:
> When we unload Skylake driver we may end up calling
> hdac_component_master_unbind(), it uses acomp->audio_ops, which we
> set
> in hdmi_codec_probe(), so we need to set it to NULL in
> hdmi_codec_remove(),
> otherwise we will dereference no longer existing pointer.
Hi Amadeusz,
It looks like the audio_ops should be deleted snd_hdac_acomp_exit().
Also, this doesnt seem to be the case with when the SOF driver is
removed.
Could you please give a bit more context on what error you see when
this happens?
Thanks,
Ranjani
>
> Signed-off-by: Amadeusz Sławiński <
> amadeuszx.slawinski@xxxxxxxxxxxxxxx>
> ---
> sound/soc/codecs/hdac_hdmi.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/sound/soc/codecs/hdac_hdmi.c
> b/sound/soc/codecs/hdac_hdmi.c
> index 911bb6e2a1ac..9ee1bff548d8 100644
> --- a/sound/soc/codecs/hdac_hdmi.c
> +++ b/sound/soc/codecs/hdac_hdmi.c
> @@ -1890,6 +1890,12 @@ static void hdmi_codec_remove(struct
> snd_soc_component *component)
> {
> struct hdac_hdmi_priv *hdmi =
> snd_soc_component_get_drvdata(component);
> struct hdac_device *hdev = hdmi->hdev;
> + int ret;
> +
> + ret = snd_hdac_acomp_register_notifier(hdev->bus, NULL);
> + if (ret < 0)
> + dev_err(&hdev->dev, "notifier unregister failed: err:
> %d\n",
> + ret);
>
> pm_runtime_disable(&hdev->dev);
> }
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