diff options
| -rw-r--r-- | fs/isofs/inode.c | 54 |
1 files changed, 26 insertions, 28 deletions
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c index 62c0462dc89f..276107cdaaf1 100644 --- a/fs/isofs/inode.c +++ b/fs/isofs/inode.c @@ -544,43 +544,41 @@ static int isofs_show_options(struct seq_file *m, struct dentry *root) static unsigned int isofs_get_last_session(struct super_block *sb, s32 session) { - struct cdrom_multisession ms_info; - unsigned int vol_desc_start; - struct block_device *bdev = sb->s_bdev; - int i; + struct cdrom_device_info *cdi = disk_to_cdi(sb->s_bdev->bd_disk); + unsigned int vol_desc_start = 0; - vol_desc_start=0; - ms_info.addr_format=CDROM_LBA; if (session > 0) { - struct cdrom_tocentry Te; - Te.cdte_track=session; - Te.cdte_format=CDROM_LBA; - i = ioctl_by_bdev(bdev, CDROMREADTOCENTRY, (unsigned long) &Te); - if (!i) { + struct cdrom_tocentry te; + + if (!cdi) + return 0; + + te.cdte_track = session; + te.cdte_format = CDROM_LBA; + if (cdrom_read_tocentry(cdi, &te) == 0) { printk(KERN_DEBUG "ISOFS: Session %d start %d type %d\n", - session, Te.cdte_addr.lba, - Te.cdte_ctrl&CDROM_DATA_TRACK); - if ((Te.cdte_ctrl&CDROM_DATA_TRACK) == 4) - return Te.cdte_addr.lba; + session, te.cdte_addr.lba, + te.cdte_ctrl & CDROM_DATA_TRACK); + if ((te.cdte_ctrl & CDROM_DATA_TRACK) == 4) + return te.cdte_addr.lba; } printk(KERN_ERR "ISOFS: Invalid session number or type of track\n"); } - i = ioctl_by_bdev(bdev, CDROMMULTISESSION, (unsigned long) &ms_info); - if (session > 0) - printk(KERN_ERR "ISOFS: Invalid session number\n"); -#if 0 - printk(KERN_DEBUG "isofs.inode: CDROMMULTISESSION: rc=%d\n",i); - if (i==0) { - printk(KERN_DEBUG "isofs.inode: XA disk: %s\n",ms_info.xa_flag?"yes":"no"); - printk(KERN_DEBUG "isofs.inode: vol_desc_start = %d\n", ms_info.addr.lba); - } -#endif - if (i==0) + + if (cdi) { + struct cdrom_multisession ms_info; + + ms_info.addr_format = CDROM_LBA; + if (cdrom_multisession(cdi, &ms_info) == 0) { #if WE_OBEY_THE_WRITTEN_STANDARDS - if (ms_info.xa_flag) /* necessary for a valid ms_info.addr */ + /* necessary for a valid ms_info.addr */ + if (ms_info.xa_flag) #endif - vol_desc_start=ms_info.addr.lba; + vol_desc_start = ms_info.addr.lba; + } + } + return vol_desc_start; } |