[PATCH] loopback: Fix crash on error during init

[frederic.dalleau@xxxxxxxxx (Dalleau, Frederic)]

For example, this would crash pa an is fixed by the patch :

pacmd load-module module-loopback sink_input_properties=dummy

2012/4/2 Fr?d?ric Dalleau <frederic.dalleau at linux.intel.com>:
> If an error during pa__init() causes a jump to fail: u->asyncmsgq is not
> initialized.

Fr?d?ric