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path: root/drivers/ide/ide-cd.c
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Diffstat (limited to 'drivers/ide/ide-cd.c')
-rw-r--r--drivers/ide/ide-cd.c38
1 files changed, 29 insertions, 9 deletions
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index cae69372cf4..ddfbea41d29 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -55,7 +55,7 @@
static DEFINE_MUTEX(idecd_ref_mutex);
-static void ide_cd_release(struct kref *);
+static void ide_cd_release(struct device *);
static struct cdrom_info *ide_cd_get(struct gendisk *disk)
{
@@ -67,7 +67,7 @@ static struct cdrom_info *ide_cd_get(struct gendisk *disk)
if (ide_device_get(cd->drive))
cd = NULL;
else
- kref_get(&cd->kref);
+ get_device(&cd->dev);
}
mutex_unlock(&idecd_ref_mutex);
@@ -79,7 +79,7 @@ static void ide_cd_put(struct cdrom_info *cd)
ide_drive_t *drive = cd->drive;
mutex_lock(&idecd_ref_mutex);
- kref_put(&cd->kref, ide_cd_release);
+ put_device(&cd->dev);
ide_device_put(drive);
mutex_unlock(&idecd_ref_mutex);
}
@@ -194,6 +194,14 @@ static void cdrom_analyze_sense_data(ide_drive_t *drive,
bio_sectors = max(bio_sectors(failed_command->bio), 4U);
sector &= ~(bio_sectors - 1);
+ /*
+ * The SCSI specification allows for the value
+ * returned by READ CAPACITY to be up to 75 2K
+ * sectors past the last readable block.
+ * Therefore, if we hit a medium error within the
+ * last 75 2K sectors, we decrease the saved size
+ * value.
+ */
if (sector < get_capacity(info->disk) &&
drive->probed_capacity - sector < 4 * 75)
set_capacity(info->disk, sector);
@@ -787,6 +795,9 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
if (blk_fs_request(rq)) {
ide_end_request(drive, 1, rq->nr_sectors);
return ide_stopped;
+ } else if (rq->cmd_type == REQ_TYPE_ATA_PC && !rq->bio) {
+ ide_end_request(drive, 1, 1);
+ return ide_stopped;
}
goto end_request;
}
@@ -1787,15 +1798,17 @@ static void ide_cd_remove(ide_drive_t *drive)
ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
ide_proc_unregister_driver(drive, info->driver);
-
+ device_del(&info->dev);
del_gendisk(info->disk);
- ide_cd_put(info);
+ mutex_lock(&idecd_ref_mutex);
+ put_device(&info->dev);
+ mutex_unlock(&idecd_ref_mutex);
}
-static void ide_cd_release(struct kref *kref)
+static void ide_cd_release(struct device *dev)
{
- struct cdrom_info *info = to_ide_drv(kref, cdrom_info);
+ struct cdrom_info *info = to_ide_drv(dev, cdrom_info);
struct cdrom_device_info *devinfo = &info->devinfo;
ide_drive_t *drive = info->drive;
struct gendisk *g = info->disk;
@@ -1994,7 +2007,12 @@ static int ide_cd_probe(ide_drive_t *drive)
ide_init_disk(g, drive);
- kref_init(&info->kref);
+ info->dev.parent = &drive->gendev;
+ info->dev.release = ide_cd_release;
+ dev_set_name(&info->dev, dev_name(&drive->gendev));
+
+ if (device_register(&info->dev))
+ goto out_free_disk;
info->drive = drive;
info->driver = &ide_cdrom_driver;
@@ -2008,7 +2026,7 @@ static int ide_cd_probe(ide_drive_t *drive)
g->driverfs_dev = &drive->gendev;
g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE;
if (ide_cdrom_setup(drive)) {
- ide_cd_release(&info->kref);
+ put_device(&info->dev);
goto failed;
}
@@ -2018,6 +2036,8 @@ static int ide_cd_probe(ide_drive_t *drive)
add_disk(g);
return 0;
+out_free_disk:
+ put_disk(g);
out_free_cd:
kfree(info);
failed: