[PATCH 18/24] ASoC: soc-component: add snd_soc_component_compr_copy()

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>

component related function should be implemented at
soc-component.c.
This patch adds snd_soc_component_compr_copy().

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
---
 include/sound/soc-component.h |  2 ++
 sound/soc/soc-component.c     | 21 +++++++++++++++++++++
 sound/soc/soc-compress.c      | 13 ++-----------
 3 files changed, 25 insertions(+), 11 deletions(-)

diff --git a/include/sound/soc-component.h b/include/sound/soc-component.h
index 0e05aedaee05..255014fe6264 100644
--- a/include/sound/soc-component.h
+++ b/include/sound/soc-component.h
@@ -452,6 +452,8 @@ int snd_soc_component_compr_get_codec_caps(struct snd_compr_stream *cstream,
 int snd_soc_component_compr_ack(struct snd_compr_stream *cstream, size_t bytes);
 int snd_soc_component_compr_pointer(struct snd_compr_stream *cstream,
 				    struct snd_compr_tstamp *tstamp);
+int snd_soc_component_compr_copy(struct snd_compr_stream *cstream,
+				 char __user *buf, size_t count);
 
 int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream);
 int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream,
diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c
index 8a24d6f3572a..6a47255767a0 100644
--- a/sound/soc/soc-component.c
+++ b/sound/soc/soc-component.c
@@ -570,6 +570,27 @@ int snd_soc_component_compr_pointer(struct snd_compr_stream *cstream,
 }
 EXPORT_SYMBOL_GPL(snd_soc_component_compr_pointer);
 
+int snd_soc_component_compr_copy(struct snd_compr_stream *cstream,
+				 char __user *buf, size_t count)
+{
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	struct snd_soc_component *component;
+	int i, ret;
+
+	for_each_rtd_components(rtd, i, component) {
+		if (component->driver->compress_ops &&
+		    component->driver->compress_ops->copy) {
+			ret = component->driver->compress_ops->copy(
+				component, cstream, buf, count);
+			if (ret < 0)
+				return soc_component_ret(component, ret);
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_compr_copy);
+
 int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c
index 39fe2c58fa88..7e05f263b655 100644
--- a/sound/soc/soc-compress.c
+++ b/sound/soc/soc-compress.c
@@ -516,20 +516,11 @@ static int soc_compr_copy(struct snd_compr_stream *cstream,
 			  char __user *buf, size_t count)
 {
 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
-	struct snd_soc_component *component;
-	int i, ret = 0;
+	int ret;
 
 	mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);
 
-	for_each_rtd_components(rtd, i, component) {
-		if (!component->driver->compress_ops ||
-		    !component->driver->compress_ops->copy)
-			continue;
-
-		ret = component->driver->compress_ops->copy(
-			component, cstream, buf, count);
-		break;
-	}
+	ret = snd_soc_component_compr_copy(cstream, buf, count);
 
 	mutex_unlock(&rtd->card->pcm_mutex);
 	return ret;
-- 
2.17.1