vcs->streaming = 0; 
static int vino_v4l2_streamoff(struct vino_channel_settings *vcs){	if (vcs->reading)		return -EBUSY;	if (!vcs->streaming)		return 0;	vino_capture_stop(vcs);	vcs->streaming = 0;	return 0;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/a637a114f36b94a1ad8b9867f43bac0414958420/vino.c/buggy/drivers/media/video/vino.c