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* [PATCH v3] ALSA: intel_hdmi: Check for error num after setting mask
@ 2022-01-07  2:08 Jiasheng Jiang
  2022-01-07  7:26 ` Takashi Iwai
  0 siblings, 1 reply; 2+ messages in thread
From: Jiasheng Jiang @ 2022-01-07  2:08 UTC (permalink / raw)
  To: tiwai
  Cc: perex, tiwai, leon, broonie, joe, alsa-devel, linux-kernel,
	Jiasheng Jiang

To maintain the consistency of the code, it should be better to add the
sanity check after calling dma_set_mask_and_coherent(), like
tegra_pcm_dma_allocate() in `sound/soc/tegra/tegra_pcm.c`.

Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
---
Changelog

v2 -> v3

* Change 1. Remove the fixes tag and change the message.
* Change 2. Correct the patch to fit the lastest code.
---
 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 378826312abe..1c94eaff1931 100644
--- a/sound/x86/intel_hdmi_audio.c
+++ b/sound/x86/intel_hdmi_audio.c
@@ -1750,7 +1750,9 @@ 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)
+		return ret;
 
 	init_channel_allocations();
 
-- 
2.25.1


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2022-01-07  2:08 [PATCH v3] ALSA: intel_hdmi: Check for error num after setting mask Jiasheng Jiang
2022-01-07  7:26 ` Takashi Iwai

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