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ASoC: simple-card: fix one bug to writing to the platform data

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It's a bug that writing to the platform data directly, for it should
be constant. So just copy it before writing.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Xiubo Li 2014-01-14 12:35:32 +08:00 committed by Mark Brown
parent ba194a4de5
commit ca919fe4b9
1 changed files with 21 additions and 19 deletions
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40
sound/soc/generic/simple-card.c
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@ -9,9 +9,10 @@
* published by the Free Software Foundation.
*/
#include <linux/clk.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/string.h>
#include <sound/simple_card.h>
static int __asoc_simple_card_dai_init(struct snd_soc_dai *dai,
@ -190,36 +191,37 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
struct device_node *np = pdev->dev.of_node;
struct device_node *of_cpu, *of_codec, *of_platform;
struct device *dev = &pdev->dev;
int ret;
cinfo = NULL;
of_cpu = NULL;
of_codec = NULL;
of_platform = NULL;
cinfo = devm_kzalloc(dev, sizeof(*cinfo), GFP_KERNEL);
if (!cinfo)
return -ENOMEM;
if (np && of_device_is_available(np)) {
cinfo = devm_kzalloc(dev, sizeof(*cinfo), GFP_KERNEL);
if (cinfo) {
int ret;
cinfo->snd_card.dev = &pdev->dev;
ret = asoc_simple_card_parse_of(np, cinfo, dev,
&of_cpu,
&of_codec,
&of_platform);
if (ret < 0) {
if (ret != -EPROBE_DEFER)
dev_err(dev, "parse error %d\n", ret);
return ret;
}
} else {
return -ENOMEM;
cinfo->snd_card.dev = dev;
ret = asoc_simple_card_parse_of(np, cinfo, dev,
&of_cpu,
&of_codec,
&of_platform);
if (ret < 0) {
if (ret != -EPROBE_DEFER)
dev_err(dev, "parse error %d\n", ret);
return ret;
}
} else {
cinfo = pdev->dev.platform_data;
if (!cinfo) {
if (!dev->platform_data) {
dev_err(dev, "no info for asoc-simple-card\n");
return -EINVAL;
}
cinfo->snd_card.dev = &pdev->dev;
memcpy(cinfo, dev->platform_data, sizeof(*cinfo));
cinfo->snd_card.dev = dev;
}
if (!cinfo->name ||