linux-kernel - [PATCH] ASoC: mediatek: mtk-btcvsd: Add checks for write and read of mtk_btcvsd

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Date:   Wed, 16 Nov 2022 11:07:50 +0800
From:   Jiasheng Jiang <jiasheng@...as.ac.cn>
To:     lgirdwood@...il.com, broonie@...nel.org, perex@...ex.cz,
        tiwai@...e.com, matthias.bgg@...il.com
Cc:     alsa-devel@...a-project.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Jiasheng Jiang <jiasheng@...as.ac.cn>
Subject: [PATCH] ASoC: mediatek: mtk-btcvsd: Add checks for write and read of mtk_btcvsd_snd

As the mtk_btcvsd_snd_write and mtk_btcvsd_snd_read may return error,
it should be better to catch the exception.

Fixes: 4bd8597dc36c ("ASoC: mediatek: add btcvsd driver")
Signed-off-by: Jiasheng Jiang <jiasheng@...as.ac.cn>
---
 sound/soc/mediatek/common/mtk-btcvsd.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/sound/soc/mediatek/common/mtk-btcvsd.c b/sound/soc/mediatek/common/mtk-btcvsd.c
index d884bb7c0fc7..1c28b41e4311 100644
--- a/sound/soc/mediatek/common/mtk-btcvsd.c
+++ b/sound/soc/mediatek/common/mtk-btcvsd.c
@@ -1038,11 +1038,9 @@ static int mtk_pcm_btcvsd_copy(struct snd_soc_component *component,
 	struct mtk_btcvsd_snd *bt = snd_soc_component_get_drvdata(component);
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		mtk_btcvsd_snd_write(bt, buf, count);
+		return mtk_btcvsd_snd_write(bt, buf, count);
 	else
-		mtk_btcvsd_snd_read(bt, buf, count);
-
-	return 0;
+		return mtk_btcvsd_snd_read(bt, buf, count);
 }
 
 /* kcontrol */
-- 
2.25.1