struct device* dev = vsb->dev;
struct iso_vol* vdesc = (struct iso_vol*)valloc(ISO9660_BLKSZ);
struct iso_vol_primary* vprim = NULL;
struct device* dev = vsb->dev;
struct iso_vol* vdesc = (struct iso_vol*)valloc(ISO9660_BLKSZ);
struct iso_vol_primary* vprim = NULL;