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 --- sound/soc/generic/simple-card.c | 40 +++++++++++++++++++++------------------- 1 file changed, 21 insertions(+), 19 deletions(-)
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c index 406e4ea..5b65324 100644 --- a/sound/soc/generic/simple-card.c +++ b/sound/soc/generic/simple-card.c @@ -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>
#define asoc_simple_get_card_info(p) \ @@ -204,36 +205,37 @@ 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 (!pdev->dev.platform_data) { dev_err(dev, "no info for asoc-simple-card\n"); return -EINVAL; }
- cinfo->snd_card.dev = &pdev->dev; + memcpy(cinfo, pdev->dev.platform_data, sizeof(cinfo)); + cinfo->snd_card.dev = dev; }
if (!cinfo->name ||