ASoC: qcom: sdm845: Add error handling in sdm845_slim_snd_hw_params()

The function sdm845_slim_snd_hw_params() calls the functuion
snd_soc_dai_set_channel_map() but does not check its return
value. A proper implementation can be found in msm_snd_hw_params().

Add error handling for snd_soc_dai_set_channel_map(). If the
function fails and it is not a unsupported error, return the
error code immediately.

Fixes: 5caf64c ("ASoC: qcom: sdm845: add support to DB845c and Lenovo Yoga")
Cc: [email protected] # v5.6
Signed-off-by: Wentao Liang <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: ISCAS-Vulab

sound/soc/qcom/sdm845.c

@@ -91,6 +91,10 @@ static int sdm845_slim_snd_hw_params(struct snd_pcm_substream *substream,
 		else
 			ret = snd_soc_dai_set_channel_map(cpu_dai, tx_ch_cnt,
 							  tx_ch, 0, NULL);
+		if (ret != 0 && ret != -ENOTSUPP) {
+			dev_err(rtd->dev, "failed to set cpu chan map, err:%d\n", ret);
+			return ret;
+		}
 	}
 
 	return 0;