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

On Sat, Nov 08, 2014 at 11:38:03AM +1100, NeilBrown wrote:

• int val = ucontrol->value.integer.value[0];
• if (!!(twl4030_read(codec, TWL4030_REG_CODEC_MODE)

•       & TWL4030_OPTION_1) == !!val)
  

• /* No change */
  

• return 0;
  

We shouldn't be accepting attempts to set out of range values so there should be no need for the !! on val (which confused me when I was reading this).