[alsa-devel] [PATCH 09/20] ASoC: amd: Drop superfluous PCM preallocation error checks

[Takashi Iwai]

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

Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/soc/amd/acp-pcm-dma.c         | 26 +++++++++++---------------
 sound/soc/amd/raven/acp3x-pcm-dma.c |  9 ++++-----
 2 files changed, 15 insertions(+), 20 deletions(-)

diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
index f4011bebc7ec..2391c7f1dd2d 100644
--- a/sound/soc/amd/acp-pcm-dma.c
+++ b/sound/soc/amd/acp-pcm-dma.c
@@ -1142,7 +1142,6 @@ static int acp_dma_trigger(struct snd_pcm_substream *substream, int cmd)
 
 static int acp_dma_new(struct snd_soc_pcm_runtime *rtd)
 {
-	int ret;
 	struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd,
 								    DRV_NAME);
 	struct audio_drv_data *adata = dev_get_drvdata(component->dev);
@@ -1150,24 +1149,21 @@ static int acp_dma_new(struct snd_soc_pcm_runtime *rtd)
 
 	switch (adata->asic_type) {
 	case CHIP_STONEY:
-		ret = snd_pcm_lib_preallocate_pages_for_all(rtd->pcm,
-							    SNDRV_DMA_TYPE_DEV,
-							    parent,
-							    ST_MIN_BUFFER,
-							    ST_MAX_BUFFER);
+		snd_pcm_lib_preallocate_pages_for_all(rtd->pcm,
+						      SNDRV_DMA_TYPE_DEV,
+						      parent,
+						      ST_MIN_BUFFER,
+						      ST_MAX_BUFFER);
 		break;
 	default:
-		ret = snd_pcm_lib_preallocate_pages_for_all(rtd->pcm,
-							    SNDRV_DMA_TYPE_DEV,
-							    parent,
-							    MIN_BUFFER,
-							    MAX_BUFFER);
+		snd_pcm_lib_preallocate_pages_for_all(rtd->pcm,
+						      SNDRV_DMA_TYPE_DEV,
+						      parent,
+						      MIN_BUFFER,
+						      MAX_BUFFER);
 		break;
 	}
-	if (ret < 0)
-		dev_err(component->dev,
-			"buffer preallocation failure error:%d\n", ret);
-	return ret;
+	return 0;
 }
 
 static int acp_dma_close(struct snd_pcm_substream *substream)
diff --git a/sound/soc/amd/raven/acp3x-pcm-dma.c b/sound/soc/amd/raven/acp3x-pcm-dma.c
index 3e7d4099364c..1a2e15ff1456 100644
--- a/sound/soc/amd/raven/acp3x-pcm-dma.c
+++ b/sound/soc/amd/raven/acp3x-pcm-dma.c
@@ -367,11 +367,10 @@ static snd_pcm_uframes_t acp3x_dma_pointer(struct snd_pcm_substream *substream)
 
 static int acp3x_dma_new(struct snd_soc_pcm_runtime *rtd)
 {
-	return snd_pcm_lib_preallocate_pages_for_all(rtd->pcm,
-						     SNDRV_DMA_TYPE_DEV,
-						     rtd->pcm->card->dev,
-						     MIN_BUFFER,
-						     MAX_BUFFER);
+	snd_pcm_lib_preallocate_pages_for_all(rtd->pcm, SNDRV_DMA_TYPE_DEV,
+					      rtd->pcm->card->dev,
+					      MIN_BUFFER, MAX_BUFFER);
+	return 0;
 }
 
 static int acp3x_dma_hw_free(struct snd_pcm_substream *substream)
-- 
2.16.4