removed (commented out) assert in pcm_drain for avoiding the infinte loop when a program is aborted and drain is failed.
removed (commented out) assert in pcm_drain for avoiding the infinte
loop when a program is aborted and drain is failed.

zedongchen/alsa-lib,tiwai/alsa-lib,lgirdwood/alsa-lib,alsa-project/alsa-lib,takaswie/alsa-lib,takaswie/alsa-lib,tiwai/alsa-lib,tiwai/alsa-lib,mengdonglin/alsa-lib,Distrotech/alsa-lib,gittup/alsa-lib,zedongchen/alsa-lib,takaswie/alsa-lib,zedongchen/alsa-lib,Distrotech/alsa-lib,lgirdwood/alsa-lib,zedongchen/alsa-lib,lgirdwood/alsa-lib,gittup/alsa-lib,alsa-project/alsa-lib,mikelima/alsa-lib,mengdonglin/alsa-lib,mikelima/alsa-lib,lgirdwood/alsa-lib,mikelima/alsa-lib,gittup/alsa-lib,Distrotech/alsa-lib,tiwai/alsa-lib,mengdonglin/alsa-lib,Distrotech/alsa-lib,mikelima/alsa-lib,mikelima/alsa-lib,mengdonglin/alsa-lib,gittup/alsa-lib,alsa-project/alsa-lib,takaswie/alsa-lib,alsa-project/alsa-lib,takaswie/alsa-lib,Distrotech/alsa-lib,zedongchen/alsa-lib,lgirdwood/alsa-lib,mengdonglin/alsa-lib