Re: [alsa-devel] [PATCH 1/3] ASoC: twl4030: don't report EBUSY if no change requested.

On 11/10/2014 01:45 AM, NeilBrown wrote:

diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index b6b0cb399599..613b61cee081 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -957,6 +957,16 @@ static int snd_soc_put_twl4030_opmode_enum_double(struct snd_kcontrol *kcontrol, { struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);

• struct snd_ctl_elem_value currentval;

snd_ctl_elem_value is a bit to big to be put onto the kernel stack. Just using twl4030_read() should be fine.