[alsa-devel] [PATCH v2 07/25] ASoC: soc-core: tidyup for snd_soc_dapm_new_controls()

[Kuninori Morimoto]

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

snd_soc_dapm_new_controls() registers controls by using
for(... i < num; ...). It means if widget was NULL, num should be zero.
Thus, we don't need to check about widget pointer.
This patch also cares missing return value.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
---
v1 -> v2

	- check return value
	- change Subject

 sound/soc/soc-core.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 6347d65..b3979bb 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1264,16 +1264,14 @@ static int soc_probe_component(struct snd_soc_card *card,
 
 	soc_init_component_debugfs(component);
 
-	if (component->driver->dapm_widgets) {
-		ret = snd_soc_dapm_new_controls(dapm,
+	ret = snd_soc_dapm_new_controls(dapm,
 					component->driver->dapm_widgets,
 					component->driver->num_dapm_widgets);
 
-		if (ret != 0) {
-			dev_err(component->dev,
-				"Failed to create new controls %d\n", ret);
-			goto err_probe;
-		}
+	if (ret != 0) {
+		dev_err(component->dev,
+			"Failed to create new controls %d\n", ret);
+		goto err_probe;
 	}
 
 	for_each_component_dais(component, dai) {
@@ -1989,13 +1987,15 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)
 	INIT_WORK(&card->deferred_resume_work, soc_resume_deferred);
 #endif
 
-	if (card->dapm_widgets)
-		snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets,
-					  card->num_dapm_widgets);
+	ret = snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets,
+					card->num_dapm_widgets);
+	if (ret < 0)
+		goto probe_end;
 
-	if (card->of_dapm_widgets)
-		snd_soc_dapm_new_controls(&card->dapm, card->of_dapm_widgets,
-					  card->num_of_dapm_widgets);
+	ret = snd_soc_dapm_new_controls(&card->dapm, card->of_dapm_widgets,
+					card->num_of_dapm_widgets);
+	if (ret < 0)
+		goto probe_end;
 
 	/* initialise the sound card only once */
 	if (card->probe) {
-- 
2.7.4