[PATCH 2/4] ASoC: simple-card: dynamically allocate the DAI link array

From: Jean-Francois Moine
Date: Fri Feb 21 2014 - 10:34:44 EST


The DAI link array is hard-coded as a single CPU / CODEC DAIs link.

This patch allocates this array with the card definition and facilitates
handling more links.

Signed-off-by: Jean-Francois Moine <moinejf@xxxxxxx>
---
sound/soc/generic/simple-card.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index 8809ab4..a75a8bb 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -20,7 +20,6 @@ struct simple_card_data {
unsigned int daifmt;
struct asoc_simple_dai cpu_dai;
struct asoc_simple_dai codec_dai;
- struct snd_soc_dai_link snd_link;
};

static int __asoc_simple_card_dai_init(struct snd_soc_dai *dai,
@@ -246,7 +245,9 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
int ret;

- priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ priv = devm_kzalloc(dev,
+ sizeof(*priv) + sizeof(*dai_link),
+ GFP_KERNEL);
if (!priv)
return -ENOMEM;

@@ -255,7 +256,7 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
*/
priv->snd_card.owner = THIS_MODULE;
priv->snd_card.dev = dev;
- dai_link = &priv->snd_link;
+ dai_link = (struct snd_soc_dai_link *) (priv + 1);
priv->snd_card.dai_link = dai_link;
priv->snd_card.num_links = 1;

--
1.9.0

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