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Subject[PATCH] ALSA: intel_hdmi: Check for error num after setting mask
Date
As the dma_supported() may fail, the dma_set_mask_and_coherent() may
fail too.
Therefore, it should be better to check it and return error if fails.

Fixes: da8648097497 ("ALSA: x86: Flatten two abstraction layers")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
---
sound/x86/intel_hdmi_audio.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c
index 33b12aa67cf5..6caea517f07f 100644
--- a/sound/x86/intel_hdmi_audio.c
+++ b/sound/x86/intel_hdmi_audio.c
@@ -1770,7 +1770,9 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev)
card_ctx->irq = irq;

/* only 32bit addressable */
- dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+ ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+ if (ret)
+ goto err;

init_channel_allocations();

--
2.25.1
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