[PATCH v2 09/25] ASoC: soc-core: tidyup for snd_soc_dapm_add_routes()

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From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>

snd_soc_dapm_add_routes() registers routes by using
for(... i < num; ...). If routes was NULL, num should be zero.
Thus, we don't need to check about route pointer.
This patch also cares missing return value.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
v1 -> v2

	- check return value
	- change Subject

 sound/soc/soc-core.c | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 21cdd3c..ca1b04c 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1310,10 +1310,11 @@ static int soc_probe_component(struct snd_soc_card *card,
 	if (ret < 0)
 		goto err_probe;
 
-	if (component->driver->dapm_routes)
-		snd_soc_dapm_add_routes(dapm,
-					component->driver->dapm_routes,
-					component->driver->num_dapm_routes);
+	ret = snd_soc_dapm_add_routes(dapm,
+				      component->driver->dapm_routes,
+				      component->driver->num_dapm_routes);
+	if (ret < 0)
+		goto err_probe;
 
 	list_add(&dapm->list, &card->dapm_list);
 	/* see for_each_card_components */
@@ -2060,13 +2061,15 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)
 		snd_soc_add_card_controls(card, card->controls,
 					  card->num_controls);
 
-	if (card->dapm_routes)
-		snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes,
-					card->num_dapm_routes);
+	ret = snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes,
+				      card->num_dapm_routes);
+	if (ret < 0)
+		goto probe_end;
 
-	if (card->of_dapm_routes)
-		snd_soc_dapm_add_routes(&card->dapm, card->of_dapm_routes,
-					card->num_of_dapm_routes);
+	ret = snd_soc_dapm_add_routes(&card->dapm, card->of_dapm_routes,
+				      card->num_of_dapm_routes);
+	if (ret < 0)
+		goto probe_end;
 
 	/* try to set some sane longname if DMI is available */
 	snd_soc_set_dmi_name(card, NULL);
-- 
2.7.4

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