ASoC: intel: Drop superfluous PCM preallocation error checks

snd_pcm_lib_preallocate_pages() and co always succeed, so the error
check is simply redundant.  Drop it.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/soc/intel/haswell/sst-haswell-pcm.c

@@ -946,27 +946,21 @@ static int hsw_pcm_new(struct snd_soc_pcm_runtime *rtd)
 	struct sst_pdata *pdata = dev_get_platdata(component->dev);
 	struct hsw_priv_data *priv_data = dev_get_drvdata(component->dev);
 	struct device *dev = pdata->dma_dev;
-	int ret = 0;
 
 	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream ||
 			pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
-		ret = snd_pcm_lib_preallocate_pages_for_all(pcm,
+		snd_pcm_lib_preallocate_pages_for_all(pcm,
 			SNDRV_DMA_TYPE_DEV_SG,
 			dev,
 			hsw_pcm_hardware.buffer_bytes_max,
 			hsw_pcm_hardware.buffer_bytes_max);
-		if (ret) {
-			dev_err(rtd->dev, "dma buffer allocation failed %d\n",
-				ret);
-			return ret;
-		}
 	}
 	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream)
 		priv_data->pcm[rtd->cpu_dai->id][SNDRV_PCM_STREAM_PLAYBACK].hsw_pcm = pcm;
 	if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream)
 		priv_data->pcm[rtd->cpu_dai->id][SNDRV_PCM_STREAM_CAPTURE].hsw_pcm = pcm;
 
-	return ret;
+	return 0;
 }
 
 #define HSW_FORMATS \