[sink] Check for errors when changing routing.
[sink] Check for errors when changing routing.

mer-hybris/pulseaudio-modules-droid,mer-hybris/pulseaudio-modules-droid,ballock/pulseaudio-modules-droid,jusa/pulseaudio-modules-droid,mlehtima/pulseaudio-modules-droid,mlehtima/pulseaudio-modules-droid,jusa/pulseaudio-modules-droid,ballock/pulseaudio-modules-droid