stop_pipeline 802 sound/usb/pcm.c goto stop_pipeline; stop_pipeline 817 sound/usb/pcm.c goto stop_pipeline; stop_pipeline 822 sound/usb/pcm.c goto stop_pipeline; stop_pipeline 839 sound/usb/pcm.c goto stop_pipeline; stop_pipeline 842 sound/usb/pcm.c stop_pipeline: