linux-kernel - [PATCH] ASoC: soc-pcm: add a check for unsupported commands to the soc_pcm

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Message-ID: <tencent_6920550C9D5A9AA1C4DC19D8ED24310DCB07@qq.com>
Date: Fri, 15 Mar 2024 16:18:00 +0800
From: xuhanwu <2433926602@...com>
To: 2433926602@...com
Cc: broonie@...nel.org,
	lgirdwood@...il.com,
	linux-kernel@...r.kernel.org,
	linux-sound@...r.kernel.org,
	perex@...ex.cz,
	tiwai@...e.com,
	xu.hanwu@...lec.com
Subject: [PATCH] ASoC: soc-pcm: add a check for unsupported commands to the soc_pcm_trigger

Dear broonie

Issue: Before and after Linux version 6.2, when the cmd is 
SNDRV_PCM_TRIGGER_DRAIN, calling the function soc_pcm_trigger results 
in different return values.
Through your guidance, I've realized that the code logic has been adjusted. 
I will further deepen my study of the code. Thank you for your guidance.

Thank you for your help.
xuhanwu