ASoC: meson: 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/meson/axg-fifo.c

@@ -267,9 +267,10 @@ int axg_fifo_pcm_new(struct snd_soc_pcm_runtime *rtd, unsigned int type)
 	struct snd_card *card = rtd->card->snd_card;
 	size_t size = axg_fifo_hw.buffer_bytes_max;
 
-	return snd_pcm_lib_preallocate_pages(rtd->pcm->streams[type].substream,
-					     SNDRV_DMA_TYPE_DEV, card->dev,
-					     size, size);
+	snd_pcm_lib_preallocate_pages(rtd->pcm->streams[type].substream,
+				      SNDRV_DMA_TYPE_DEV, card->dev,
+				      size, size);
+	return 0;
 }
 EXPORT_SYMBOL_GPL(axg_fifo_pcm_new);