The function dev_err_probe() is called in function platform_get_irq_byname() to print the error code. ------------------------------------------------------------------ 发件人：Mark Brown broonie@kernel.org 发送时间：2022年3月1日(星期二) 20:40 收件人：Yang Li yang.lee@linux.alibaba.com 抄 送：lgirdwood lgirdwood@gmail.com; perex perex@perex.cz; tiwai tiwai@suse.com; tangmeng tangmeng@uniontech.com; alsa-devel alsa-devel@alsa-project.org; linux-kernel linux-kernel@vger.kernel.org; Abaci Robot abaci@linux.alibaba.com 主 题：Re: [PATCH -next] ASoC: amd: Fix an ignored error return from platform_get_irq_byname()
On Tue, Mar 01, 2022 at 02:49:20PM +0800, Yang Li wrote:
- adata->i2s_irq = platform_get_irq_byname(pdev, "acp_dai_irq");
- if (adata->i2s_irq < 0)
- adata->i2s_irq = ret = platform_get_irq_byname(pdev, "acp_dai_irq");
- if (ret < 0) return -ENODEV;
If an error code is being returned we should report that error code rather than squashing it down to -ENODEV.