struct scsi_cd *cd = scsi_cd(inode->i_bdev->bd_disk); 
struct scsi_cd *cd; 
static int sr_block_open(struct inode *inode, struct file *file){	struct gendisk *disk = inode->i_bdev->bd_disk;	struct scsi_cd *cd = scsi_cd(inode->i_bdev->bd_disk);	int ret = 0;	if(!(cd = scsi_cd_get(disk)))		return -ENXIO;	if((ret = cdrom_open(&cd->cdi, inode, file)) != 0)		scsi_cd_put(cd);	return ret;}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/80d904c43b11105c16395b240078ccc2f7ac6074/sr.c/clean/drivers/scsi/sr.c