sound fixes for 4.9-rc5 this became a largish pull-request, as we've got a bunch of pending ASoC fixes at this time. One noticeable change is the removal of error directive in uapi/sound/asoc.h. We found that the API has been already used on Chromebooks, so we need to support it even now. A slight big LOC is found in Qualcomm lpass driver, but the rest are all small and easy fixes for ASoC drivers (sti, sun4i, Realtek codecs, Intel, tas571x, etc) in addition to the patches to harden the ALSA core proc file accesses.