[PATCH v1 1/1] ASoC: sprd: Shadow errors from dma_request_chan()

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

For some reason the SPDR PCM support code requests DMA resources
in the IOCTL. This might lead to the Linux error codes, such as
EPROBE_DEFER, to be leaked to the user space. Prevent that from
happening by shadowing errors from dma_request_chan() as it was
done previously (see Fixes tag).

Fixes: 08d77e31df21 ("ASoC: sprd: Replace dma_request_slave_channel() by dma_request_chan()")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Closes: https://lore.kernel.org/r/20260918115229.CC8AC1F000FF@smtp.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 sound/soc/sprd/sprd-pcm-compress.c | 2 +-
 sound/soc/sprd/sprd-pcm-dma.c      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/sprd/sprd-pcm-compress.c b/sound/soc/sprd/sprd-pcm-compress.c
index 0b110b72482c..d18c9a4e5a77 100644
--- a/sound/soc/sprd/sprd-pcm-compress.c
+++ b/sound/soc/sprd/sprd-pcm-compress.c
@@ -157,7 +157,7 @@ static int sprd_platform_compr_dma_config(struct snd_soc_component *component,
 	chan = dma_request_chan(dev, dma_params->chan_name[channel]);
 	if (IS_ERR(chan)) {
 		dev_err(dev, "failed to request dma channel\n");
-		return PTR_ERR(chan);
+		return -ENODEV;
 	}
 	dma->chan = chan;
 
diff --git a/sound/soc/sprd/sprd-pcm-dma.c b/sound/soc/sprd/sprd-pcm-dma.c
index bc4d24e5a25d..fadaafbd807c 100644
--- a/sound/soc/sprd/sprd-pcm-dma.c
+++ b/sound/soc/sprd/sprd-pcm-dma.c
@@ -171,7 +171,7 @@ static int sprd_pcm_request_dma_channel(struct snd_soc_component *component,
 			dev_err(dev, "failed to request dma channel:%s\n",
 				dma_params->chan_name[i]);
 			sprd_pcm_release_dma_channel(substream);
-			return PTR_ERR(chan);
+			return -ENODEV;
 		}
 		data->chan = chan;
 	}
-- 
2.50.1