[PATCH] ASoC: fsl_spdif: Fix error handler with pm_runtime_enable

There is error message when defer probe happens:

fsl-spdif-dai 2dab0000.spdif: Unbalanced pm_runtime_enable!

Fix the error handler with pm_runtime_enable and add
fsl_spdif_remove() for pm_runtime_disable.

Fixes: 9cb2b3796e08 ("ASoC: fsl_spdif: Add pm runtime function")
Signed-off-by: Shengjiu Wang <redacted>
---
 sound/soc/fsl/fsl_spdif.c | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index 2a76714eb8e6..76a7c9581333 100644
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c

@@ -1441,16 +1441,29 @@ static int fsl_spdif_probe(struct platform_device *pdev)
 					      &spdif_priv->cpu_dai_drv, 1);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register DAI: %d\n", ret);
-		return ret;
+		goto err_pm_disable;
 	}
 
 	ret = imx_pcm_dma_init(pdev, IMX_SPDIF_DMABUF_SIZE);
-	if (ret && ret != -EPROBE_DEFER)
-		dev_err(&pdev->dev, "imx_pcm_dma_init failed: %d\n", ret);
+	if (ret) {
+		dev_err_probe(&pdev->dev, ret, "imx_pcm_dma_init failed\n");
+		goto err_pm_disable;
+	}
+
+	return ret;
 
+err_pm_disable:
+	pm_runtime_disable(&pdev->dev);
 	return ret;
 }
 
+static int fsl_spdif_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+
+	return 0;
+}
+
 #ifdef CONFIG_PM
 static int fsl_spdif_runtime_suspend(struct device *dev)
 {

@@ -1554,6 +1567,7 @@ static struct platform_driver fsl_spdif_driver = {
 		.pm = &fsl_spdif_pm,
 	},
 	.probe = fsl_spdif_probe,
+	.remove = fsl_spdif_remove,
 };
 
 module_platform_driver(fsl_spdif_driver);

-- 
2.27.0

On Fri, 11 Jun 2021 14:18:38 +0800, Shengjiu Wang wrote:

There is error message when defer probe happens:

fsl-spdif-dai 2dab0000.spdif: Unbalanced pm_runtime_enable!

Fix the error handler with pm_runtime_enable and add
fsl_spdif_remove() for pm_runtime_disable.

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: fsl_spdif: Fix error handler with pm_runtime_enable
      commit: 28108d71ee11a7232e1102effab3361049dcd3b8

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark