From: Kevin Hilman khilman@deeprootsystems.com
Fix for the error when the audio module is unloaded. On unregistering the platform_device, platform_device_release will free the platform data.If platform data is static the kernel panics when it is freed. Instead use the platform device helper function to add data.
This change has been tested on DM644x EVM, DM644x SFFSDR and DM355 EVM.
Signed-off-by: Chaithrika U S chaithrika@ti.com Signed-off-by: Kevin Hilman khilman@deeprootsystems.com Signed-off-by: Mark Brown broonie@opensource.wolfsonmicro.com --- sound/soc/davinci/davinci-evm.c | 3 ++- sound/soc/davinci/davinci-sffsdr.c | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/sound/soc/davinci/davinci-evm.c b/sound/soc/davinci/davinci-evm.c index 54851f3..9b90b34 100644 --- a/sound/soc/davinci/davinci-evm.c +++ b/sound/soc/davinci/davinci-evm.c @@ -186,7 +186,8 @@ static int __init evm_init(void)
platform_set_drvdata(evm_snd_device, &evm_snd_devdata); evm_snd_devdata.dev = &evm_snd_device->dev; - evm_snd_device->dev.platform_data = &evm_snd_data; + platform_device_add_data(evm_snd_device, &evm_snd_data, + sizeof(evm_snd_data));
ret = platform_device_add_resources(evm_snd_device, evm_snd_resources, ARRAY_SIZE(evm_snd_resources)); diff --git a/sound/soc/davinci/davinci-sffsdr.c b/sound/soc/davinci/davinci-sffsdr.c index 50baef1..0bf81ab 100644 --- a/sound/soc/davinci/davinci-sffsdr.c +++ b/sound/soc/davinci/davinci-sffsdr.c @@ -141,7 +141,8 @@ static int __init sffsdr_init(void)
platform_set_drvdata(sffsdr_snd_device, &sffsdr_snd_devdata); sffsdr_snd_devdata.dev = &sffsdr_snd_device->dev; - sffsdr_snd_device->dev.platform_data = &sffsdr_snd_data; + platform_device_add_data(sffsdr_snd_device, &sffsdr_snd_data, + sizeof(sffsdr_snd_data));
ret = platform_device_add_resources(sffsdr_snd_device, sffsdr_snd_resources,