2022-01-07 02:09:32

by Jiasheng Jiang

Subject: [PATCH v3] ALSA: intel_hdmi: Check for error num after setting mask

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 <[email protected]>
---
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

2022-01-07 07:26:31

by Takashi Iwai

Subject: Re: [PATCH v3] ALSA: intel_hdmi: Check for error num after setting mask

On Fri, 07 Jan 2022 03:08:51 +0100,
Jiasheng Jiang wrote:
>
> 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 <[email protected]>

Thanks, applied now.


Takashi