ALSA: USB-audio: Break out copying to urb from prepare_playback_urb()

Refactoring in preparation for adding Zoom R16/24 quirk.
No functional change.

Signed-off-by: Ricard Wanderlof <ricardw@axis.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Ricard Wanderlof 2015-10-19 08:52:49 +02:00 • committed by Takashi Iwai
commit 07a40c2fc6