Re: [PATCH 5.9 080/391] ASoC: SOF: fix a runtime pm issue in SOF when HDMI codec doesnt work

From: Paul Bolle
Date: Thu Nov 05 2020 - 08:25:24 EST


Greg Kroah-Hartman schreef op di 03-11-2020 om 21:32 [+0100]:
> From: Rander Wang <rander.wang@xxxxxxxxx>
>
> [ Upstream commit 6c63c954e1c52f1262f986f36d95f557c6f8fa94 ]
>
> When hda_codec_probe() doesn't initialize audio component, we disable
> the codec and keep going. However,the resources are not released. The
> child_count of SOF device is increased in snd_hdac_ext_bus_device_init
> but is not decrease in error case, so SOF can't get suspended.
>
> snd_hdac_ext_bus_device_exit will be invoked in HDA framework if it
> gets a error. Now copy this behavior to release resources and decrease
> SOF device child_count to release SOF device.
>
> Signed-off-by: Rander Wang <rander.wang@xxxxxxxxx>
> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
> Reviewed-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@xxxxxxxxxxxxxxx>
> Signed-off-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
> Link: https://lore.kernel.org/r/20200825235040.1586478-3-ranjani.sridharan@xxxxxxxxxxxxxxx
> Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
> ---
> sound/soc/sof/intel/hda-codec.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/sound/soc/sof/intel/hda-codec.c b/sound/soc/sof/intel/hda-codec.c
> index 2c5c451fa19d7..c475955c6eeba 100644
> --- a/sound/soc/sof/intel/hda-codec.c
> +++ b/sound/soc/sof/intel/hda-codec.c
> @@ -151,7 +151,7 @@ static int hda_codec_probe(struct snd_sof_dev *sdev, int address,
> if (!hdev->bus->audio_component) {
> dev_dbg(sdev->dev,
> "iDisp hw present but no driver\n");
> - return -ENOENT;
> + goto error;
> }
> hda_priv->need_display_power = true;
> }
> @@ -174,7 +174,7 @@ static int hda_codec_probe(struct snd_sof_dev *sdev, int address,
> * other return codes without modification
> */
> if (ret == 0)
> - ret = -ENOENT;
> + goto error;
> }
>
> return ret;

My local build of v5.9.5 broke on this patch.

sound/soc/sof/intel/hda-codec.c: In function 'hda_codec_probe':
sound/soc/sof/intel/hda-codec.c:177:4: error: label 'error' used but not defined
177 | goto error;
| ^~~~
make[4]: *** [scripts/Makefile.build:283: sound/soc/sof/intel/hda-codec.o] Error 1
make[3]: *** [scripts/Makefile.build:500: sound/soc/sof/intel] Error 2
make[2]: *** [scripts/Makefile.build:500: sound/soc/sof] Error 2
make[1]: *** [scripts/Makefile.build:500: sound/soc] Error 2
make: *** [Makefile:1778: sound] Error 2

There's indeed no error label in v5.9.5. (There is one in v5.10-rc2, I just
checked.) Is no-one else running into this?

Thanks,


Paul Bolle