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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2017-09-26 00:40:42 +0000
committerMark Brown <broonie@kernel.org>2017-09-26 09:19:33 -0700
commit75ab9eb6f15bad78b3ce274c699c27dc98ab13ce (patch)
tree22a53174bcd06a07710e8c17f521017f21a03994 /sound/soc/soc-core.c
parent74b33b8481e7c8a66149093f691b9082b50e24fc (diff)
downloadlinux-75ab9eb6f15bad78b3ce274c699c27dc98ab13ce.tar.bz2
ASoC: add null_snd_soc_ops and reduce NULL ops check
Double NULL pointer check for ops and ops->func is difficult to read and might be forget to check it if new func was add. This patch adds new null_snd_soc_ops and use it if rtd->dai_link didn't have it to avoid NULL ops, and reduces ops NULL check. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/soc-core.c')
-rw-r--r--sound/soc/soc-core.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index e16220600e51..1b5b51952718 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -614,6 +614,8 @@ struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
}
EXPORT_SYMBOL_GPL(snd_soc_get_dai_substream);
+static const struct snd_soc_ops null_snd_soc_ops;
+
static struct snd_soc_pcm_runtime *soc_new_pcm_runtime(
struct snd_soc_card *card, struct snd_soc_dai_link *dai_link)
{
@@ -626,6 +628,9 @@ static struct snd_soc_pcm_runtime *soc_new_pcm_runtime(
INIT_LIST_HEAD(&rtd->component_list);
rtd->card = card;
rtd->dai_link = dai_link;
+ if (!rtd->dai_link->ops)
+ rtd->dai_link->ops = &null_snd_soc_ops;
+
rtd->codec_dais = kzalloc(sizeof(struct snd_soc_dai *) *
dai_link->num_codecs,
GFP_KERNEL);