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From:   Vijendar Mukunda <Vijendar.Mukunda@amd.com>
To:     <broonie@kernel.org>
CC:     <alsa-devel@alsa-project.org>, <Basavaraj.Hiregoudar@amd.com>,
        <Sunil-kumar.Dommati@amd.com>, <Mastan.Katragadda@amd.com>,
        <Arungopal.kondaveeti@amd.com>,
        Vijendar Mukunda <Vijendar.Mukunda@amd.com>,
        Liam Girdwood <lgirdwood@gmail.com>,
        Jaroslav Kysela <perex@perex.cz>,
        Takashi Iwai <tiwai@suse.com>,
        Venkata Prasad Potturu <venkataprasad.potturu@amd.com>,
        V sujith kumar Reddy <Vsujithkumar.Reddy@amd.com>,
        Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>,
        open list <linux-kernel@vger.kernel.org>
Subject: [PATCH 6/6] ASoC: amd: acp: fix for invalid dai id handling in acp_get_byte_count()
Date:   Mon, 26 Jun 2023 16:23:54 +0530
Message-ID: <20230626105356.2580125-6-Vijendar.Mukunda@amd.com>
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For invalid dai id, instead of returning -EINVAL
return bytes count as zero in acp_get_byte_count() function.

Fixes: 623621a9f9e1 ("ASoC: amd: Add common framework to support I2S on ACP SOC")

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
---
 sound/soc/amd/acp/amd.h | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/sound/soc/amd/acp/amd.h b/sound/soc/amd/acp/amd.h
index 5f2119f42271..12a176a50fd6 100644
--- a/sound/soc/amd/acp/amd.h
+++ b/sound/soc/amd/acp/amd.h
@@ -173,7 +173,7 @@ int snd_amd_acp_find_config(struct pci_dev *pci);
 
 static inline u64 acp_get_byte_count(struct acp_dev_data *adata, int dai_id, int direction)
 {
-	u64 byte_count, low = 0, high = 0;
+	u64 byte_count = 0, low = 0, high = 0;
 
 	if (direction == SNDRV_PCM_STREAM_PLAYBACK) {
 		switch (dai_id) {
@@ -191,7 +191,7 @@ static inline u64 acp_get_byte_count(struct acp_dev_data *adata, int dai_id, int
 			break;
 		default:
 			dev_err(adata->dev, "Invalid dai id %x\n", dai_id);
-			return -EINVAL;
+			goto POINTER_RETURN_BYTES;
 		}
 	} else {
 		switch (dai_id) {
@@ -213,12 +213,13 @@ static inline u64 acp_get_byte_count(struct acp_dev_data *adata, int dai_id, int
 			break;
 		default:
 			dev_err(adata->dev, "Invalid dai id %x\n", dai_id);
-			return -EINVAL;
+			goto POINTER_RETURN_BYTES;
 		}
 	}
 	/* Get 64 bit value from two 32 bit registers */
 	byte_count = (high << 32) | low;
 
+POINTER_RETURN_BYTES:
 	return byte_count;
 }
 
-- 
2.34.1