if (!dev->oss.blksize) 
if (!dev->dmasound.blksize) 
static int dsp_buffer_free(struct saa7134_dev *dev){	if (!dev->oss.blksize)		BUG();	videobuf_dma_free(&dev->oss.dma);	dev->oss.blocks  = 0;	dev->oss.blksize = 0;	dev->oss.bufsize = 0;	return 0;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/b54134be53be720da423692665ec215eb14a678b/saa7134-alsa.c/clean/drivers/media/video/saa7134/saa7134-alsa.c