Re: [PATCH] ASoC: amd: added error checks in dma driver

From: Mukunda,Vijendar
Date: Thu Nov 30 2017 - 00:28:49 EST




On Tuesday 28 November 2017 05:22 PM, Mark Brown wrote:
On Tue, Nov 28, 2017 at 10:13:44AM +0530, Vijendar Mukunda wrote:

- acp_init(audio_drv_data->acp_mmio, audio_drv_data->asic_type);
+ status = acp_init(audio_drv_data->acp_mmio, audio_drv_data->asic_type);
+ if (status) {
+ dev_err(&pdev->dev, "ACP Init failed\n");
+ return status;
+ }
Better to print the error code to help people see what went wrong.

static int acp_audio_remove(struct platform_device *pdev)
{
+ int status;
struct audio_drv_data *adata = dev_get_drvdata(&pdev->dev);
- acp_deinit(adata->acp_mmio);
+ status = acp_deinit(adata->acp_mmio);
+ if (status) {
+ dev_err(&pdev->dev, "ACP Deinit failed\n");
+ return status;
+ }
snd_soc_unregister_platform(&pdev->dev);
Remove operations can't meaningfully fail, better to just log the error
and carry on.
Will prepare a patch based on your review comments and post it as V2 version.