Fix free of uninitialized pointer
Fix free of uninitialized pointer

Fix free of uninitialized pointer (bug#1576).

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