linux-kernel - [PATCH] ASoC: soc-pcm: add the judgment of unsupported commands for the function soc_pcm

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Date: Fri,  8 Mar 2024 18:07:06 +0800
From: xuhanwu <2433926602@...com>
To: lgirdwood@...il.com,
	broonie@...nel.org,
	perex@...ex.cz,
	tiwai@...e.com
Cc: linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	xu.hanwu@...lec.com
Subject: [PATCH] ASoC: soc-pcm: add the judgment of unsupported commands for the function soc_pcm_trigger

From: xuhanwu <xu.hanwu@...lec.com>

Function soc_pcm_trigger, if the parameter cmd does not support the need to return an error (-EINVAL).

Signed-off-by: xuhanwu <xu.hanwu@...lec.com>
---
 sound/soc/soc-pcm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 77ee103b7..eba737729 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1173,6 +1173,9 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 			if (r < 0)
 				break;
 		}
+		break;
+	default:
+		return -EINVAL;
 	}
 
 	/*
-- 
2.17.1