audio_init() should not use hw_error(), because dumping CPU registers
is unhelpful there, and aborting is wrong, because it can be called
called from an audio device's realize() method.
The two uses of hw_error() come from commit 0d9acba:
* When qemu_new_timer() fails. It couldn't fail back then, and it
can't fail now. Drop the unreachable error handling.
* When no_audio_driver can't be initialized. It couldn't fail back
then, and it can't fail now. Replace the error handling by an
assertion.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
7e274652e4