[PATCH 5/6] ASoC: stm32: spdifrx: improve error management on probe deferral

From: Olivier Moysan
Date: Mon Feb 03 2020 - 05:09:54 EST


Do not print an error trace when deferring probe for SPDIFRX driver.

Signed-off-by: Etienne Carriere <etienne.carriere@xxxxxx>
Signed-off-by: Olivier Moysan <olivier.moysan@xxxxxx>
---
sound/soc/stm/stm32_spdifrx.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/sound/soc/stm/stm32_spdifrx.c b/sound/soc/stm/stm32_spdifrx.c
index 9f80ddf34443..49766afdae61 100644
--- a/sound/soc/stm/stm32_spdifrx.c
+++ b/sound/soc/stm/stm32_spdifrx.c
@@ -406,7 +406,9 @@ static int stm32_spdifrx_dma_ctrl_register(struct device *dev,

spdifrx->ctrl_chan = dma_request_chan(dev, "rx-ctrl");
if (IS_ERR(spdifrx->ctrl_chan)) {
- dev_err(dev, "dma_request_slave_channel failed\n");
+ if (PTR_ERR(spdifrx->ctrl_chan) != -EPROBE_DEFER)
+ dev_err(dev, "dma_request_slave_channel error %ld\n",
+ PTR_ERR(spdifrx->ctrl_chan));
return PTR_ERR(spdifrx->ctrl_chan);
}

@@ -929,7 +931,9 @@ static int stm32_spdifrx_parse_of(struct platform_device *pdev,

spdifrx->kclk = devm_clk_get(&pdev->dev, "kclk");
if (IS_ERR(spdifrx->kclk)) {
- dev_err(&pdev->dev, "Could not get kclk\n");
+ if (PTR_ERR(spdifrx->kclk) != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "Could not get kclk: %ld\n",
+ PTR_ERR(spdifrx->kclk));
return PTR_ERR(spdifrx->kclk);
}

@@ -967,7 +971,9 @@ static int stm32_spdifrx_probe(struct platform_device *pdev)
spdifrx->base,
spdifrx->regmap_conf);
if (IS_ERR(spdifrx->regmap)) {
- dev_err(&pdev->dev, "Regmap init failed\n");
+ if (PTR_ERR(spdifrx->regmap) != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "Regmap init error %ld\n",
+ PTR_ERR(spdifrx->regmap));
return PTR_ERR(spdifrx->regmap);
}

@@ -1003,7 +1009,8 @@ static int stm32_spdifrx_probe(struct platform_device *pdev)
pcm_config = &stm32_spdifrx_pcm_config;
ret = devm_snd_dmaengine_pcm_register(&pdev->dev, pcm_config, 0);
if (ret) {
- dev_err(&pdev->dev, "PCM DMA register returned %d\n", ret);
+ if (ret != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "PCM DMA register error %d\n", ret);
goto error;
}

--
2.17.1